PATENTS   
Patents > Guidance, Tools, and Manuals >> Classification >>> Class Definition
    Class Numbers & Titles   | Class Numbers Only   | USPC Index   | International   | HELP  
You are viewing a Class definition.

 [Search a list of Patent Appplications for class 379]   CLASS 379,TELEPHONIC COMMUNICATIONS
Click here for a printable version of this file

SECTION I - CLASS DEFINITION

STATEMENT OF THE CLASS SUBJECT MATTER:

(A) Systems, processes and instruments for the two-way electrical transmission of intelligible audio information having arbitrary content over a link including an electrical conductor, between spaced apart locations, so as to enable conversation therebetween, and intended for the private use of a listener or a group of listeners. The term "intelligible" used above is intended to include the capability for transmission of speech or the like (e.g., music), rather than restriction to a specified audible signal, such as a bell or buzzer.

(B) Switching, signalling or signal transmission peculiar to, or specified as for a telephone or a telephone system, except for multiplex communications as indicated in Lines With Other Classes and Within This Class, below.

(C) Subsystems, elements and adjuncts peculiar to such transmission and not provided for elsewhere.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

(1) Bi-directional audio communication is normally a duplex arrangement, and simultaneous audio transmission of a single conversation is in this class (379) and excluded from Class 370, Multiplex Communications, in the absence of some other particular multiplexing technique.

(2) With exception of voice signal duplexing as pointed out in (1) above, subject matter including multiplexing, particularly involving plural conversations, regardless of recitation of telephone limitations, is excluded from this class (379) and is classified elsewhere.

(3) Audible signalling for call alerting, or producing a signal having other specific content, such as bells, buzzers, etc., are classified elsewhere, even if nominally characterized as used in a telephone.

(4) Electromagnetic switches for automatic telephone switching type, per se, are classified elsewhere.

(5) Electrical connectors merely nominally characterized as for telephones, in the absence of additional telephone structure are classified elsewhere.

(6) Named communications or telecommunications networks absent recitation of telephone or voice limitation are not classifiable herein.

(7) The following terms when used in a communication system or instrument are considered to specify telephone equipment except as specified in (2) above with respect to multiplexing or in class or subclass search notes: dial tone - off-hook, handset - on-hook, hookswitch - ringback, howler - sidetone, intercom - switchboard, key set - switchhook, telephone line (used with switching system), tip and ring (leads)

RELATIONSHIP TO OTHER SPEECH COMMUNICATIONS CLASSES

This class (379) requires the capability for two-way spoken communications, or specified used of a telephone line, and subsystems peculiar to either of the above.

A mechanical telephone is classified elsewhere. See References to Other Classes, below.

All speech or telephone equipment which conceals message content despite interception or unauthorized reception of a telephone signal is classified elsewhere. See References to Other Classes, below.

Electrical speech processing system and apparatus, including for example, such systems as, megaphones, public address systems and hearing aids; and transducers such as microphones, earphones or loudspeakers and also includes either of a telephone microphone or receiver are classified elsewhere. See References to Other Classes, below.

Audio signal telecommunications by a modulated carrier wave not having telephone land line structure or limitations is classified elsewhere. See References to Other Classes, below.

SECTION III - SUBCLASS REFERENCES TO THE CURRENT CLASS

SEE OR SEARCH THIS CLASS, SUBCLASS:

1.01,through 36, for observation, measuring, or testing.
37,through 51, for coin-free paystation, emergency, or alarm equipment.
52,for handicapped user.
55.1,through 56.3, for wireless or carrier link.
67.1,through 88.28, for voice signal storage.
90,through 110, for composite system or terminal.
111,through 142,for usage measurement or display.
143,through 155, for paystations.
156,through 187, for key, private or party systems.
188,through 200, for call or terminal limiting.
201,through 218, for special services.
219,through 332, for switch telephone network.
333,through 349, for network component systems.
350,through 386, for supervisory or control signalling.
387,through 418, for substation or line circuitry or component.
419,through 456, for terminal structure or accessory.
457,for miscellaneous.

SECTION IV - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

181Acoustics,   includes a mechanical telephone.
335Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,   for electromagnetic switches for automatic telephone switching type, per se.
340Communications: Electrical,   for audible signalling for call alerting, or producing a signal having other specific content, such as bells, buzzers, etc., even if nominally characterized as used in a telephone.
370Multiplex Communications,   for subject matter including multiplexing, particularly involving plural conversations, regardless of recitation of telephone limitations; subclasses 276+ for duplex transmission.
380Cryptography,   includes all speech or telephone equipment which conceals message content despite interception or unauthorized reception of a telephone signal.
381Electrical Audio Signal Processing and Systems,   a generic electrical speech processing system and apparatus class and includes, for example, such systems as, megaphones, public address systems and hearing aids; and transducers such as microphones, earphones or loudspeakers and also includes either of a telephone microphone or receiver, but not their combination as in a handset.
439Electrical Connectors,   for electrical connectors merely nominally characterized as for telephones, in the absence of additional telephone structure.
455Telecommunications,   includes audio signal telecommunications by a modulated carrier wave not having telephone land line structure or limitations.

SECTION V - GLOSSARY

BI-DIRECTIONAL

Capable of use, particularly in transmitting information in two opposite directions. Additionally, when used to describe an audio transducer, capable of conversion of sound both to and from electrical signal variations.

CALL ADDRESS SIGNAL

An electrical representation of a called terminal designation (i.e., telephone number) which controls switching apparatus to establish a connection from a calling terminal.

DIALING

Generating a call address signal. Although a dial is a rotary pulse generating switch, the term dialing is sometimes used generically as in the terms "tone dialing" and "resistance dialing".

SUBSCRIBER

Telephone user or service location.

SUBSCRIBER

Telephone circuitry or instruments at subscriber location.

TELEPHONE

An instrument, known as a user terminal set, containing an audio reproducer, and a speech-to-electricity transducer. An obsolete usage of this term (telephone) is broad enough to include a microphone or reproducer; however, a microphone or reproducer, per se, is classified in Class 381.

SUBCLASSES

[List of Patents for class 379 subclass 1.01]    1.01DIAGNOSTIC TESTING, MALFUNCTION INDICATION, OR ELECTRICAL CONDITION MEASUREMENT:
 This subclass is indented under the class definition.  Subject matter for either (a) evaluating or monitoring the condition of a telephone system or a component thereof in order to determine the presence of a faulty or nonstandard condition or (b) quantitatively determining an electrical parameter of a telephone system or component thereof.
(1) Note. Testing to determine which one of several normal status conditions exist (e.g., busy-idle, off-hook) is not classified in this or indented subclasses.
(2) Note. The testing or measurement must be specifically claimed as in or for a telephone system or a component thereof for classification in this or indented communication or telecommunication system is not sufficient for classification in these subclasses.

SEE OR SEARCH CLASS:

324Electricity: Measuring and Testing,   appropriate subclasses for an electrical measurement or test not limited to a telephone instrument or system.
361Electricity: Electrical Systems and Devices,   subclasses 1 through 138for safety and protection of electrical systems and devices not provided elsewhere.
370Communications: Multiplexing,   subclasses 241 through 253for fault indication of a packet switch or circuit switching network or line.
375Pulse or Digital Communications,   subclasses 224 through 228for testing of a digital communications system.
381Electrical Audio Signal Processing Systems and Devices,   subclasses 58 through 60for evaluation of an audio device other than telephone equipment.
455Telecommunications,   subclasses 423 through 425,67.11-67.7, 115.1-115.4 and subclasses 226.1-226.4 for testing of a cellular radiotelephone system, system having transmitter and receiver at separated stations, and transmitter or receiver only station, respectively.
  
[List of Patents for class 379 subclass 1.02]    1.02Of audio message storage and retrieval:
 This subclass is indented under subclass 1.01.  Subject matter including testing or qualifying an instrument used for the retention, recovery, or formation of an audible information signal (e.g., voice mail).

SEE OR SEARCH THIS CLASS, SUBCLASS:

67.1through 88.28, for telephone system having an audio message storage, retrieval or synthesis, in general.
  
[List of Patents for class 379 subclass 1.03]    1.03Of data transmission:
 This subclass is indented under subclass 1.01.  Subject matter including testing a two wire telephone line using an audio modulated data signal to indicate proper line quality.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.01through 93.37, for transmission of a digital message signal over a telephone line in general.
  
[List of Patents for class 379 subclass 1.04]    1.04Qualifying line for data transmission:
 This subclass is indented under subclass 1.03.  Subject matter including rating the line quality for particular measurements
(1) Note. For example, rating the line for baud rates 14.4 k or 28.8 k.
  
[List of Patents for class 379 subclass 2]    2Including fault responsive disconnection of tested component:
 This subclass is indented under subclass 1.  Subject matter including automatic removal from operation of a component evaluated as faulty.
  
[List of Patents for class 379 subclass 3]    3Of hybrid, or echo suppressor or canceller:
 This subclass is indented under subclass 1.  Subject matter for testing a device for coupling a two-wire to four-wire interconnecting circuit or for eliminating an echo effect in a telephone system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

345,391 and 402+, for a hybrid in telephone equipment.
406+,for an echo suppressor.
  
[List of Patents for class 379 subclass 4]    4Of repeater:
 This subclass is indented under subclass 1.  Subject matter which tests a device which amplifies or transfers a signal between two telephone circuits, or circuit sections.

SEE OR SEARCH THIS CLASS, SUBCLASS:

338+,for a telephone repeater.

SEE OR SEARCH CLASS:

370Multiplex Communications,   subclass 243 for fault detection of a multiplex repeater, and subclasses 246+ for testing of a standard operation of a multiplex repeater.
375Pulse or Digital Communications,   subclass 213 for testing of a pulse or digital repeater.
  
[List of Patents for class 379 subclass 7]    7For detection of eavesdropping device:
 This subclass is indented under subclass 1.  Subject matter to determine whether an undesired or surreptitious receiving device is connected to telephone equipment.

SEE OR SEARCH THIS CLASS, SUBCLASS:

35,for an eavesdropping device.
  
[List of Patents for class 379 subclass 8]    8With blocking of normal usage:
 This subclass is indented under subclass 1.  Subject matter including prevention of normal use of a telephone system component being evaluated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

381,for a make busy circuit, in general.
  
[List of Patents for class 379 subclass 9]    9Of centralized switching system:
 This subclass is indented under subclass 1.  Subject matter for evaluating the operation of a system or component which selectively connects two of a plurality of telephone lines for communication therebetween.

SEE OR SEARCH THIS CLASS, SUBCLASS:

242+,for a centralized telephone switching system.
  
[List of Patents for class 379 subclass 9.01]    9.01Software compatibility:
 This subclass is indented under subclass 9.  Subject matter including testing a new or replacement software in a telephone switching system to ensure its proper operation.
  
[List of Patents for class 379 subclass 9.02]    9.02Maintenance console:
 This subclass is indented under subclass 9.  Subject matter including the use of a computer workstation for monitoring or routine testing the telephone network.
  
[List of Patents for class 379 subclass 9.03]    9.03Trouble ticket reporting:
 This subclass is indented under subclass 9.  Subject matter including reception at the maintenance unit a report of system malfunction.
  
[List of Patents for class 379 subclass 9.04]    9.04Record or report generation:
 This subclass is indented under subclass 9.  Subject matter including generating action reports with regards to the outcome of a particular testing sequence including initial input parameters.

SEE OR SEARCH THIS CLASS, SUBCLASS:

116,and 119, for hardcopy record generating in the interexchange or telephone call charge metering or monitoring.
  
[List of Patents for class 379 subclass 9.05]    9.05Backup system:
 This subclass is indented under subclass 9.  Subject matter including the use of a spare equipment in case of failure or overload of the primary system.
  
[List of Patents for class 379 subclass 9.06]    9.06Of line interface circuitry:
 This subclass is indented under subclass 9.  Subject matter including testing of circuitry which connects a subscriber line or instrument to a telephone switching system or network (e.g., analog to digital interface).
(1) Note. The subscriber line interface circuitry (SLIC) performs conventional Borscht functions such as, power to the telephone (battery feed), over voltage protection, ringing, on or off hook status (supervision), codec, 2 to 4 wire conversion (hybrid), and testing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

399.01through 413.04, for telephone subscriber line to transmission line interface, in general.
  
[List of Patents for class 379 subclass 10.01]    10.01By automatic testing sequence:
 This subclass is indented under subclass 9.  Subject matter which serially performs plural steps included in a central switching arrangement evaluation.
  
[List of Patents for class 379 subclass 10.02]    10.02By call generator:
 This subclass is indented under subclass 10.01.  Subject matter which automatically places the call by the test equipment in order to perform the testing operation.
  
[List of Patents for class 379 subclass 10.03]    10.03Script file generation or execution:
 This subclass is indented under subclass 10.01.  Subject matter which determines a plurality of steps needed to perform the testing sequence.
  
[List of Patents for class 379 subclass 11]    11Routiner:
 This subclass is indented under subclass 10.  Subject matter wherein centralized switching equipment is tested by performing actual line selection.
  
[List of Patents for class 379 subclass 12]    12With dedicated testing line or trunk:
 This subclass is indented under subclass 9.  Subject matter including a line or trunk used exclusively for measurement or diagnostic testing.
  
[List of Patents for class 379 subclass 13]    13Of call timing or charging equipment:
 This subclass is indented under subclass 9.  Subject matter for evaluating equipment which measures call duration or cost.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111+,for a call timing and charging arrangement.
  
[List of Patents for class 379 subclass 14]    14Of plural exchange network:
 This subclass is indented under subclass 9.  Subject matter wherein a plurality of switching offices facilities are tested.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219+,for a plural exchange telephone network.
  
[List of Patents for class 379 subclass 14.01]    14.01Fault segmentation (e.g., error location in network):
 This subclass is indented under subclass 14.  Subject matter including locating a fault within a network of plural switching offices.
  
[List of Patents for class 379 subclass 15.01]    15.01Of switching equipment or network element:
 This subclass is indented under subclass 9.  Subject matter for evaluating the operation of a individual telephone central office or peripheral equipment.
  
[List of Patents for class 379 subclass 15.02]    15.02Advanced intelligent network (AIN):
 This subclass is indented under subclass 15.01.  Subject matter wherein computer based elements control the operation of the telephone network via out of band signaling (e.g., signaling system 7).

SEE OR SEARCH THIS CLASS, SUBCLASS:

230,for interexchange signaling with signaling path distinct from trunk.
  
[List of Patents for class 379 subclass 15.03]    15.03Provisioning of service:
 This subclass is indented under subclass 15.01.  Subject matter includes testing the implementation or operation of newly added functions to the system (e.g., special services)

SEE OR SEARCH THIS CLASS, SUBCLASS:

201.01through 218.01, for special services in telephonic communications in general.
  
[List of Patents for class 379 subclass 15.04]    15.04Of plural AIN elements:
 This subclass is indented under subclass 15.01.  Subject matter wherein testing of multiple advanced intelligent switches is to be performed.
  
[List of Patents for class 379 subclass 15.05]    15.05Determining fault location:
 This subclass is indented under subclass 15.04.  Subject matter includes finding the exact fault place between network elements.
  
[List of Patents for class 379 subclass 16]    16Of switching path:
 This subclass is indented under subclass 15.  Subject matter which evaluates the route of a switching connection through telephone switching equipment.

SEE OR SEARCH THIS CLASS, SUBCLASS:

273+,for alternate routing of a call connection.
  
[List of Patents for class 379 subclass 17]    17Of switching selector:
 This subclass is indented under subclass 15.  Subject matter for testing a device which selects a branch of the switching path.

SEE OR SEARCH CLASS:

324Electricity: Measuring and Testing,   subclasses 415+ for testing of an electromagnetic switch.
  
[List of Patents for class 379 subclass 18]    18By use of call address signal:
 This subclass is indented under subclass 15.  Subject matter which generates a selective switching control signal specifying a called station address.

SEE OR SEARCH THIS CLASS, SUBCLASS:

352+,for telephone call address signal generating, in general.
  
[List of Patents for class 379 subclass 19]    19Rapid manual connecting structure for test equipment:
 This subclass is indented under subclass 15.  Subject matter designed or located for connection of a testing or measurement arrangement.

SEE OR SEARCH CLASS:

439Electrical Connectors,   appropriate subclasses for such connectors not limited to testing telephone switching devices.
  
[List of Patents for class 379 subclass 20]    20Of switchboard element condition (e.g., lamp):
 This subclass is indented under subclass 9.  Subject matter for evaluating an element of an arrangement for manual line interconnection.
(1) Note. Such elements may include lamps or cords.

SEE OR SEARCH CLASS:

324Electricity: Measuring and Testing,   subclasses 403+ for testing of a lamp, in general.
  
[List of Patents for class 379 subclass 21]    21Using portable test set (e.g., handset type):
 This subclass is indented under subclass 1.  Subject matter in which a line test or measurement is performed with a device which is small and light enough to be easily carried by an individual.
  
[List of Patents for class 379 subclass 22]    22Of trunk or long line:
 This subclass is indented under subclass 1.  Subject matter wherein a characteristic of an interexchange or in specified telephone conductor is evaluated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

27,for testing of a subscriber line or loop.
  
[List of Patents for class 379 subclass 22.01]    22.01By loopback:
 This subclass is indented under subclass 22.  Subject matter including transmitting a known signal from a testing location over a communication path to a second remote location which retransmits the known signal back to the testing location for use in evaluating the transmission path or a device are the remote location.

SEE OR SEARCH CLASS:

370Multiplex Communications,   subclass 249 for loopback testing in a multiplex system.
714Error Detection/Correction and Fault Detection/Recovery,   subclass 716 , for loopback testing of a communications circuit of general utility by a digital test signal.
  
[List of Patents for class 379 subclass 22.02]    22.02By analysis of injected tone signal:
 This subclass is indented under subclass 22.01.  Subject matter which includes placing a signal into the system to be tested and comparing the parameters of the output signal from the system over a continuous range with the corresponding parameters of the signal input.
(1) Note. Such testing is often used in determination of degradation or crosstalk.

SEE OR SEARCH CLASS:

324Electricity: Measuring and Testing,   subclass 628 for measurement of interference between circuits.
  
[List of Patents for class 379 subclass 22.03]    22.03Fault detection or fault location on telephone link (e.g., continuity, leakage):
 This subclass is indented under subclass 22.01.  Subject matter to determine the presence or location of a conductor fault in a telephone line conductor.

SEE OR SEARCH CLASS:

324Electricity: Measuring and Testing,   appropriate subclasses for electrical testing, in general.
370Multiplex Communications,   subclasses 242 through 253for fault detection in a multiplex communications system.
381Electrical Audio Signal Processing Systems and Devices,   subclasses 58 through 60for evaluation of an audio device other than telephone equipment.
455Telecommunications,   subclasses 423 through 425,67.11-67.7, 115.1-115.4 and subclasses 226.1-226.4 for testing in a cellular radiotelephone system, system having transmitter and receiver at separated stations, and transmitter or receiver only station, respectively.
  
[List of Patents for class 379 subclass 22.04]    22.04Of digital loop carrier:
 This subclass is indented under subclass 22.03.  Subject matter to determine the presence or location of a loop fault in a network transmission equipment used to provide a pair gain function.
  
[List of Patents for class 379 subclass 22.05]    22.05Pair gain test controller:
 This subclass is indented under subclass 22.04.  Subject matter which includes a test controller connecting in tandem between testing facilities and central office switch which responds to test initiation signals by connecting a metallic pair to the test facilities at one end and to the subscriber voice frequency drop at the other end.
  
[List of Patents for class 379 subclass 22.06]    22.06Having special connector:
 This subclass is indented under subclass 22.03.  Subject matter which includes an accessing device connected between the testing equipment and the device under test for facilitating the testing process or procedure.
  
[List of Patents for class 379 subclass 22.07]    22.07Telephone multiconducting wires (e.g., tip, ring and ground wires):
 This subclass is indented under subclass 22.03.  Subject matter where a test signal is applied to more than one conductors under test to locate the fault.
  
[List of Patents for class 379 subclass 22.08]    22.08Noise:
 This subclass is indented under subclass 22.03.  Subject matter wherein the evaluated parameter is representative of an unwanted electrical disturbance or a spurious signal in the circuit or substance being measured or tested.
  
[List of Patents for class 379 subclass 23]    23Of line signalling:
 This subclass is indented under subclass 22.  Subject matter which evaluates the transmission or operation of a control signal on a telephone line.
  
[List of Patents for class 379 subclass 24]    24Electrical parameter measurement (e.g., attenuation):
 This subclass is indented under subclass 22.  Subject matter including structure for providing a quantitative indication of an electrical characteristic of the line or trunk or the signal thereon.

SEE OR SEARCH CLASS:

324Electricity: Measuring and Testing,   subclasses 600+ for impedance measurement of a nontelephone line.
  
[List of Patents for class 379 subclass 25]    25Conductor identification or location:
 This subclass is indented under subclass 22.  Subject matter for determining the identity or position of a telephone line conductor.
  
[List of Patents for class 379 subclass 26.01]    26.01Testing of network terminating interface, subscriber trunk interface, or service function:
 This subclass is indented under subclass 1.01.  Subject matter for evaluating, measuring, or monitoring a characteristic of a subscriber s line or card as well as service function of an interface.
(1) Note. Include herein the U or T type network terminating interface, COT, SLIC, etc.
  
[List of Patents for class 379 subclass 26.02]    26.02With a programmable or self-test device:
 This subclass is indented under subclass 26.01.  Subject matter which includes an automated diagnosis circuit connected thereto and automatically places test signals to test the subscriber s line card.
  
[List of Patents for class 379 subclass 27.01]    27.01Testing of subscriber loop or terminal:
 This subclass is indented under subclass 1.01.  Subject matter for evaluating, measuring, or monitoring a characteristic of a subscriber line or station.
  
[List of Patents for class 379 subclass 27.02]    27.02By generating call signal:
 This subclass is indented under subclass 27.01.  Subject matter which includes placing an actual telephone call into the system to be tested.
  
[List of Patents for class 379 subclass 27.03]    27.03By analysis of testing signal:
 This subclass is indented under subclass 27.01.  Subject matter which includes placing a signal into the system to be tested and comparing the parameters of the output signal from the system over a continuous range with the corresponding parameters of the signal input.
  
[List of Patents for class 379 subclass 27.04]    27.04By automatic testing sequence (e.g., programmable, test script or test call generation program):
 This subclass is indented under subclass 27.01.  Subject matter which includes placing signals into the system to be tested by using programmable, or automated testing device.
  
[List of Patents for class 379 subclass 27.05]    27.05Having protection circuit (e.g., surge or short circuit protector):
 This subclass is indented under subclass 27.01.  Subject matter which includes over voltage, over current or surge prevention circuitry.

SEE OR SEARCH CLASS:

361Electricity: Electrical Systems and Devices,   subclasses 1 through 138,for safety and protection of electrical systems and devices not provided elsewhere.
  
[List of Patents for class 379 subclass 27.06]    27.06Having electromechanical switch or relay:
 This subclass is indented under subclass 27.01.  Subject matter which includes connection or disconnection device for physically connecting or disconnecting communication device from or to the telephone line.
  
[List of Patents for class 379 subclass 27.07]    27.07Having plugging maintenance or test module:
 This subclass is indented under subclass 27.01.  Subject matter includes simple faulty identification device capable to plug into telephone jack or to couple to tip and ring wires in subscriber s premises location to troubleshoot problem appeared on subscriber s loop or terminal.
  
[List of Patents for class 379 subclass 27.08]    27.08Including sampling measurement technique:
 This subclass is indented under subclass 27.01.  Subject matter including measuring an input value at intervals.
  
[List of Patents for class 379 subclass 28]    28Of data transmission instrument:
 This subclass is indented under subclass 27.  Subject matter for testing of a digital signal data terminal connected to a telephone line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.01+,transmission of a digital message signal over a telephone line.

SEE OR SEARCH CLASS:

375Pulse or Digital Communications,   subclasses 224+ for testing a digital transmission instrument not part of a telephone arrangement.
  
[List of Patents for class 379 subclass 29.01]    29.01Terminal arrangement to enable remote testing (e.g., testing interface):
 This subclass is indented under subclass 27.01.  Subject matter including a remote arrangement to facilitate localization of faults in, or localized testing of, either a substation or a subscriber loop.
(1) Note. The testing may be performed either at the substation or remotely, e.g., from a central office.
  
[List of Patents for class 379 subclass 29.02]    29.02By simulator (e.g., computer simulates testing personnel):
 Subject matter under class 29.01 including an automated device (e.g., a computer) which places testing signals into the system under test.
  
[List of Patents for class 379 subclass 29.03]    29.03Voltage or current determination:
 This subclass is indented under subclass 29.01.  Subject matter having a device for measuring the voltage or current of telephone elements.
  
[List of Patents for class 379 subclass 29.04]    29.04Voltage or current detector:
 This subclass is indented under subclass 29.01.  Subject matter having a device for sensing the voltage or current of telephone elements.
  
[List of Patents for class 379 subclass 29.05]    29.05Metallic loop testing:
 This subclass is indented under subclass 29.01.  Subject matter which includes a single metallic test pair providing between the central office and the remote terminals of the pair gain system to accomplish metallic testing of the voice frequency drops for a plurality of carrier-served subscribers.
  
[List of Patents for class 379 subclass 29.06]    29.06By dialing back the calling terminal:
 This subclass is indented under subclass 29.01.  Subject matter wherein a directory number of call equipment at originating site is dialed back, or identity (i.e., caller ID) of the call equipment at originating site is transmitted back from a device under test.
  
[List of Patents for class 379 subclass 29.07]    29.07For a fault caused by an off-hook status:
 This subclass is indented under subclass 29.01.  Subject matter having a device detecting a telecommunication equipment seizing an office line.
(1) Note. For example, detecting a handset not returning to the switch latch after conversation.
  
[List of Patents for class 379 subclass 29.08]    29.08For a fault caused by new added service or equipment (e.g., software compatible):
 This subclass is indented under subclass 29.01.  Subject matter wherein a problem occurred or previous configured condition changed from modification or addition of function or device into an existing telecommunications network.
  
[List of Patents for class 379 subclass 29.09]    29.09With historical operating information database:
 This subclass is indented under subclass 29.01.  Subject matter diagnosing and segmenting a fault by comparing measured parameter with stored parameter in a storage memory.
  
[List of Patents for class 379 subclass 29.1]    29.1Visual output (e.g., printing, displaying):
 This subclass is indented under subclass 29.01.  Subject matter wherein test result is presented in visible form.
  
[List of Patents for class 379 subclass 29.11]    29.11Having telephone maintenance termination unit (e.g., MTU)
 This subclass is indented under subclass 29.01.  Subject matter includes a diagnostic circuit device placed at subscriber s terminal of a telephone line for analyzing fault and maintaining the line.
  
[List of Patents for class 379 subclass 30]    30Loop impedance (e.g., resistance, capacitance):
 This subclass is indented under subclass 27.  Subject matter for measuring the electrical impedance along and across a subscriber line or terminal.

SEE OR SEARCH CLASS:

324Electricity: Measuring and Testing,   subclasses 600+ for electrical impedance measurement.
  
[List of Patents for class 379 subclass 31]    31Of line signalling generator (e.g., dial, tone code generator):
 This subclass is indented under subclass 27.  Subject matter for testing or measuring a voice frequency signalling generator or an impulsing signal producing arrangement, in a terminal.
  
[List of Patents for class 379 subclass 32.01]    32.01Monitoring:
 This subclass is indented under subclass 1.01.  Subject matter including observing, watching or checking the telephone system or device for a special purpose.
  
[List of Patents for class 379 subclass 32.02]    32.02Trunk or long line:
 This subclass is indented under subclass 32.01.  Subject matter wherein a characteristic of an interexchange telephone conductor is being monitored.
  
[List of Patents for class 379 subclass 32.03]    32.03AIN link:
 This subclass is indented under subclass 32.02.  Subject matter wherein an advanced intelligent network is being monitored.
(1) Note. An AIN includes generally three basic elements: a) signal control points (SCPs) or computerized database, b) signal switching points (SSPs) or digital telephone switches, and c) signal transfer points (STPs) or packet switches that shuttle messages between SSPs and SCPs. In an AIN, one or more databases are queried using signaling system 7 (SS7) to determine how a call should be handled.
  
[List of Patents for class 379 subclass 32.04]    32.04Subscriber line:
 This subclass is indented under subclass 32.01.  Subject matter includes monitoring of a telephone line connecting the local telephone central office to the subscribers telephone instrument or system.
  
[List of Patents for class 379 subclass 32.05]    32.05Call tracing:
 This subclass is indented under subclass 32.01.  Subject matter includes finding evidence of a telephone call.
  
[List of Patents for class 379 subclass 33]    33Alarm or emergency (e.g., cut line):
 This subclass is indented under subclass 32.  Subject matter where the indicated condition is of damage, or imminent hazard to, telephone equipment.
  
[List of Patents for class 379 subclass 35]    35Listening-in or eavesdropping type:
 This subclass is indented under subclass 32.01.  Subject matter for making a telephone conversation audible to a person without the conversing parties being notified.

SEE OR SEARCH THIS CLASS, SUBCLASS:

85,for audio recording of a telephone conversation
  
[List of Patents for class 379 subclass 36]    36FREE CALLING FROM PAYSTATION:
 This subclass is indented under the class definition.  Subject matter including a terminal, normally requiring payment for usage, which has provision for limited usage without payment.
(1) Note. This subclass includes both emergency and nonemergency free calling from a paystation, for example "0", "800" and "911" calls.

SEE OR SEARCH THIS CLASS, SUBCLASS:

45+,for emergency calling not including free calling from a paystation.
143,for a paystation.
  
[List of Patents for class 379 subclass 37]    37EMERGENCY OR ALARM COMMUNICATIONS (E.G., WATCHMAN"S CIRCUIT):
 This subclass is indented under the class definition.  Subject matter for summoning response to a hazardous situation over a telephone line.
(1) Note. The term "hazardous situation" refers to a condition or occurrence posing imminent danger to life, health, or property.
(2) Note. The subject matter in this and it"s indented subclasses included both systems solely for emergency use an details of adjunct to other systems to specifically provide for emergency situations. Further, an arrangement incidentally (e.g., an automatic dialer) be used for an emergency situation will be classified with such arrangement.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 287+ for a signal box alarm arrangement, particularly subclass 288 for alarm transmission over a power line.
  
[List of Patents for class 379 subclass 38]    38Personal monitoring (e.g., for the ill or infirm):
 This subclass is indented under subclass 37.  Subject matter wherein the hazardous situation is a condition of, or occurrence related to the well-being of an individual.

SEE OR SEARCH THIS CLASS, SUBCLASS:

52,for a telephone instrument particularly designed for a handicapped user.
  
[List of Patents for class 379 subclass 39]    39Responsive to sensed nonsystem condition:
 This subclass is indented under subclass 37.  Subject matter which responds automatically to a condition, external to the telephone system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

106+,for remote condition indication, other than an emergency or alarm condition, over a telephone line.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 500+ for a condition responsive alarm system not including telephone apparatus.
  
[List of Patents for class 379 subclass 40]    40Automatic dialing:
 This subclass is indented under subclass 39.  Subject matter which generates a predetermined call address signal for establishing a connection to a given telephone station.

SEE OR SEARCH THIS CLASS, SUBCLASS:

51,for automatic dialing in transmission of a recorded audio alarm message.
  
[List of Patents for class 379 subclass 41]    41Transmission of recorded audio message:
 This subclass is indented under subclass 39.  Subject matter which sends a previously stored sound message signal over a telephone line in response to an emergency condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

51,for transmission of recorded audio message in emergency or alarm communications that is not automatically condition responsive.
  
[List of Patents for class 379 subclass 42]    42Plural conditions:
 This subclass is indented under subclass 39.  Subject matter wherein more than one emergency or alarm condition is detected (e.g., fire, intrusion, health hazard).
  
[List of Patents for class 379 subclass 43]    43Fire:
 This subclass is indented under subclass 39.  Subject matter wherein the detected condition is flame, heat or smoke.
  
[List of Patents for class 379 subclass 44]    44Intrusion:
 This subclass is indented under subclass 39.  Subject matter wherein the detected condition is the entry of a living being into a given space.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 541+ for an intrusion alarm not limited to telephone equipment.
  
[List of Patents for class 379 subclass 45]    45Central office responsive to emergency call or alarm (e.g., "911", operator position display):
 This subclass is indented under subclass 37.  Subject matter wherein a central office has equipment to make a connection or provide a display for an emergency situation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

36,for free calling from a paystation.
  
[List of Patents for class 379 subclass 46]    46Called line or station condition responsive (e.g., recall if busy):
 This subclass is indented under subclass 37.  Subject matter where a condition of a called line or station controls further operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33,for a telephone equipment alarm condition.
209,for this subject matter, in a nonalarm system.
  
[List of Patents for class 379 subclass 47]    47Plural alarms over single line:
 This subclass is indented under subclass 37.  Subject matter wherein a plurality of alert signals are sent over one telephone line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

42,for a condition responsive plural alarm signals.
  
[List of Patents for class 379 subclass 48]    48Announcement or alarm received at terminal station (e.g., "butt-in", alarm):
 This subclass is indented under subclass 37.  Subject matter which enables a central station (a) to interrupt normal telephone communication to make an announcement to, or (b) to actuate an alarm at, a terminal station.
  
[List of Patents for class 379 subclass 49]    49Central station with plural substations:
 This subclass is indented under subclass 37.  Subject matter having a single central alarm station connected to a plurality of terminal stations.
  
[List of Patents for class 379 subclass 50]    50By pulse or digital signal:
 This subclass is indented under subclass 37.  Subject matter wherein the alarm signal is transmitted over a telephone line as a pulse or a digital signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.01+,transmission of a digital message signal over a telephone line.

SEE OR SEARCH CLASS:

375Pulse or Digital Communications,   appropriate subclasses for nontelephone digital communication.
  
[List of Patents for class 379 subclass 51]    51With automatic dialing or transmission of recorded audio message:
 This subclass is indented under subclass 37.  Subject matter to either (a) generate a predetermined call address signal for establishing a connection to a given telephone station, or (b) send a previously stored sound message signal over a telephone line response to an emergency condition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

69,for a call originating arrangement which transmits, a previously recorded audio message, not limited to an emergency condition.
  
[List of Patents for class 379 subclass 52]    52INCLUDING AID FOR HANDICAPPED USER (E.G., VISUAL, TACTILE, HEARING AID COUPLING):
 This subclass is indented under the class definition.  Subject matter particularly designed for use by a physically impaired individual.
(1) Note. Devices specifically for coupling a hearing aid to a telephone (e.g., magnetic pickup, microphone holder) are classified herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

395,for a terminal having an amplifying arrangement.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclass 825.19 for communication or control for the handicapped.
  
[List of Patents for class 379 subclass 55.1]    55.1HAVING NEAR FIELD LINK (E.G., CAPACITIVE, INDUCTIVE):
 This subclass is indented under the class definition.  Subject matter having a transceiver, a base station, and a limited range system (i.e., field strength=k/d where k is a constant and d=distance between the transceiver and base station antennas) whereby signal transfer is inductive or capacitive, rather than electromagnetic.

SEE OR SEARCH CLASS:

246Railway Switches and Signals,   subclass 8 for similar subject matter used in train dispatching.
343Communications: Radio Wave Antennas,   subclasses 700+ for an antenna used for baseband communication.
381Electrical Audio Signal Processing Systems and Devices,   subclass 79 for a one-way near field voice system.
455Telecommunications,   subclass 41.1 for a modulated carrier type near field communications systems.
  
[List of Patents for class 379 subclass 56.1]    56.1HAVING LIGHT WAVE OR ULTRASONIC LINK FOR SPEECH OR PAGING SIGNAL:
 This subclass is indented under the class definition.  Subject matter wherein a telephone circuit connection is made by a transmitted electromagnetic wave group capable of propagating at the velocity of light (about 186,281 miles per second), or which has sonic vibrations above that of audible sound (16,000 Hz).
(1) Note. For classification herein there must be some connection to a telephone landline, for example, where a connection is made through a telephone operator or exchange.
(2) Note. Optical telephones are classified herein. For subcombinations involving optical communication see the search notes below.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclass 311.2 for a nonselective paging arrangement.
385Optical Waveguides,   appropriate subclasses for optical conducting elements, per se.
398Optical Communications,   various subclasses for systems and subsystems using an optical carrier.
  
[List of Patents for class 379 subclass 56.2]    56.2Including fiber optic link within telephone network:
 This subclass is indented under subclass 56.1.  Subject matter wherein the electromagnetic wave is a light wave which propagates within a light transmitting waveguide in a telephone network.

SEE OR SEARCH CLASS:

385Optical Waveguides,   appropriate subclasses for optical conducting elements, per se.
  
[List of Patents for class 379 subclass 56.3]    56.3Including infra-red link with landline telephone network:
 This subclass is indented under subclass 56.1.  Subject matter wherein the electromagnetic wave is in a range of radiation wavelengths invisible to the human eye lying between 750 nanometers and about 1 millimeter.
  
[List of Patents for class 379 subclass 67.1]    67.1AUDIO MESSAGE STORAGE, RETRIEVAL, OR SYNTHESIS:
 This subclass is indented under the class definition.  System, process, or instrument for the two-way electrical transmission of intelligible audio information further comprising structure for the retention, recovery, or formation of an audio message signal.
(1) Note. Such storage or retrieval must include a telephone system component at least nominally claimed. Mere designation of the apparatus as a "telephone answering device" is, of itself, insufficient for classification in this or indented subclasses.
  
[List of Patents for class 379 subclass 68]    68Dynamic audio signal recording or reproduction:
 This subclass is indented under subclass 67.1.  Subject matter which utilizes relative motion with respect to a record medium to perform the audio message storage or retrieval.

SEE OR SEARCH CLASS:

360Dynamic Magnetic Information Storage or Retrieval,   appropriate subclasses for a magnetic tape recorder.
369Dynamic Information Storage or Retrieval,   appropriate subclasses for a phonograph.
  
[List of Patents for class 379 subclass 69]    69Call originating:
 This subclass is indented under subclass 67.1.  Subject matter including generating station-designating signals for initiation of telephonic communication with a designated station and subsequently transmitting a reproduced announcement hereto or recording a message therefrom.
(1) Note. The communication established is for connection to the recorder or reproducer.
(2) Note. The subject matter herein may include sequential selection of designated stations.

SEE OR SEARCH THIS CLASS, SUBCLASS:

40,and 51, for similar subject matter to transmit fire, burglar, or police calls or alarms over the telephone system.
355+,for an automatic telephone dialing device.
  
[List of Patents for class 379 subclass 70]    70Call intercept or answering:
 This subclass is indented under subclass 68.  Subject matter including establishing of telephonic communication between a component connected to the recorder or reproducer and a distinct calling station connected to the telephone system in response to a calling signal initiated from the calling station.
(1) Note. The component is often the station being called.
(2) Note. The recorder or reproducer is usually actuated in response to the telephonic communication.
(3) Note. Such subject matter often includes both a reproducer for transmitting an announcement upon initial actuation and subsequently actuated recorder for generating a record of an incoming message.
  
[List of Patents for class 379 subclass 71]    71Consecutive use of recorded phrases or words to form message:
 This subclass is indented under subclass 70.  Subject matter selectively supplying phrases or words in real time sequence to develop a complete announcement for transmission through the telephone system.
(1) Note. Typical of systems herein are time announcing systems in which different words are reproduced in a desired order so that the time is verbalized. For example: "The time is" -- "twelve" -- "fifty" -- "four", in which each quoted phrase has been reproduced from the storage medium.
(2) Note. Time announcing systems not limited to a telephone system are classified in Class 369, subclass 23.

SEE OR SEARCH CLASS:

368Horology: Time Measuring Systems or Devices,   subclass 63 for time announcing systems having details of the time measuring system.
369Dynamic Information Storage or Retrieval,   subclass 23 for time announcing systems not limited to telephone equipment.
704Data Processing: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression,   subclasses 258+ for speech synthesis based on sequential sounds or bits.
  
[List of Patents for class 379 subclass 72]    72Sequential or repeated announcement during single call initiated cycle:
 This subclass is indented under subclass 70.  Subject matter wherein the announcement is restarted or changed so as to form a series or repeated or changed announcements.
(1) Note. A "series" means at least one repetition or modification of an initial announcement.
  
[List of Patents for class 379 subclass 73]    73Plural record carrier channels:
 This subclass is indented under subclass 70.  Subject matter wherein a single record carrier in the recorder or reproducer has a plurality of distinct record tracks thereon.
(1) Note. The term "record carrier" is the tangible object upon which the recorded signal is stored.
(2) Note. The plural tracks may be transversely displaced from each other.
(3) Note. The plural record tracks are often used for recording distinct receive messages.

SEE OR SEARCH THIS CLASS, SUBCLASS:

72,for remote control over a telephone system.

SEE OR SEARCH CLASS:

369Dynamic Information Storage or Retrieval,   subclasses 24.01 through 42.01for remote control of a recording or reproducing device other than by a telephone system.
  
[List of Patents for class 379 subclass 74]    74Remote control over telephone line:
 This subclass is indented under subclass 70.  Subject matter which operates the recorder or reproducer for other than its normal call responsive operation by a specified signal transmitted over the telephone system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

102+,for remote control over a telephone system.

SEE OR SEARCH CLASS:

369Dynamic Information Storage or Retrieval,   subclasses 24.01 through 42.01for remote control of a recording or reproducing device other than by a telephone system.
  
[List of Patents for class 379 subclass 75]    75Remote dictation:
 This subclass is indented under subclass 74.  Subject matter for correction of the recorded message subsequent to recording and prior to reproduction of the final recorded incoming message.
(1) Note. Mere naming of a device as for "dictation" absent particular structure therefore is insufficient to provide classification in this subclass.

SEE OR SEARCH CLASS:

369Dynamic Information Storage or Retrieval,   subclasses 25.01 through 29.02for dictation devices.
  
[List of Patents for class 379 subclass 76]    76Announcement selection or replacement:
 This subclass is indented under subclass 74.  Subject matter wherein the operation includes choosing or changing a message to be transmitted by the reproducer to the telephone system in response to an incoming call.
(1) Note. A selection system may be used for a stock quotation. Such a system not limited to a telephone system is classified in Class 340, Communications: Electrical, subclasses 825.26+.
  
[List of Patents for class 379 subclass 77]    77Control by generated tone:
 This subclass is indented under subclass 74.  Subject matter wherein the specified signal has an audio frequency component.
(1) Note. Included herein is control by push button telephone devices.
  
[List of Patents for class 379 subclass 78]    78Acoustic coupling:
 This subclass is indented under subclass 70.  subject matter wherein the connection between the telephone system component and the reproducer or recorder is effected by a sound wave produced and detected by a complementary pair of transducers.
(1) Note. Such subject matter often involves a pair of such acoustic links in opposite directions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

444,for an acoustic telephone system coupler.
  
[List of Patents for class 379 subclass 79]    79With specified call initiated cycle control circuitry:
 This subclass is indented under subclass 70.  Subject matter including circuitry to control the actuation or deactuation of the recorder or reproducer in response to a telephone system condition related to an incoming call.
(1) Note. For classification herein, either details of the circuitry or response to a particular condition other than call receipt is required. Mere nominal recitation of circuitry responsive to call receipt is not classifiable herein, as such response is necessarily inherent in a call answering or intercepting device.
(2) Note. The "call initiated cycle" is a sequence of reproducing and recording mode of the recording and reproducing device.
  
[List of Patents for class 379 subclass 80]    80Voice signal presence responsive:
 This subclass is indented under subclass 79.  Subject matter wherein the cycle control circuitry is responsive to the continuation, cessation, or absence of an incoming audio signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

81,for similar subject matter responsive to any other line condition.
420,for voice control of a telephone.

SEE OR SEARCH CLASS:

369Dynamic Information Storage or Retrieval,   subclasses 47.36 through 47.55for mechanism control by control signal.
  
[List of Patents for class 379 subclass 81]    81Call termination responsive (e.g., hang-up):
 This subclass is indented under subclass 79.  Subject matter wherein the cycle control circuitry is responsive to a line condition representative of the cessation of telephonic communications (e.g., open circuit, dial tone presence).
(1) Note. Such cessation may be effected by the caller hanging up or being disconnected.
  
[List of Patents for class 379 subclass 82]    82Having specified call initiation (e.g., ringing) responsive circuitry:
 This subclass is indented under subclass 79.  Subject matter including a detail of circuitry responsive to a system or component condition related to call alert signalling or start of receipt of call.
  
[List of Patents for class 379 subclass 83]    83Structural detail of storage medium drive:
 This subclass is indented under subclass 79.  Subject matter including a specific mechanical feature of a mechanism for causing relative emotion of the record medium.
  
[List of Patents for class 379 subclass 84]    84At switching facility (e.g., central office, switchboard):
 This subclass is indented under subclass 70.  Subject matter wherein the component connected to the recorder or reproducer is located at a switching station to which a plurality of telephone circuits are connected.

SEE OR SEARCH THIS CLASS, SUBCLASS:

89.4+,for voice message storage or retrieval at a centralized location.
  
[List of Patents for class 379 subclass 85]    85Recording of telephone signal during normal operation:
 This subclass is indented under subclass 68.  Subject matter wherein the record generated is of an audible signal in a telephone system, which signal exists independently of the recording device.
(1) Note. Normal operation includes, for example, two-way voice communication.
  
[List of Patents for class 379 subclass 86]    86Inductive pickup:
 This subclass is indented under subclass 85.  Subject matter wherein the signal from the telephone system is coupled for record generating by two electrical devices having an interacting magnetic field.

SEE OR SEARCH THIS CLASS, SUBCLASS:

433,for an inductive telephone pickup.
  
[List of Patents for class 379 subclass 87]    87Reproduced signal distributed over telephone line:
 This subclass is indented under subclass 68.  Subject matter wherein a reproduced information bearing audio signal is coupled by the telephone system to a remote station for conversion into sound.
(1) Note. This subclass includes use of a telephone system as a reproduced signal program distribution system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

101,for audio program distribution over a telephone line, not limited to a reproduced signal.

SEE OR SEARCH CLASS:

381Electrical Audio Signal Processing Systems and Devices,   subclasses 77+ for one-way audio signal program distribution, not limited to a telephone system.
  
[List of Patents for class 379 subclass 88.01]    88.01Voice activation or recognition:
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system wherein the system is responsive to the presence or absence of a spoken word.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88.15,for a pager device activated by an audio message signal.
  
[List of Patents for class 379 subclass 88.02]    88.02Voice verification (e.g., voice authorization, voiceprint, etc.):
 This subclass is indented under subclass 88.01.  Voice activation or recognition wherein access to the system is gained when the received spoken word matches a stored authorization signal.

SEE OR SEARCH CLASS:

704Data Processing: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression,   subclasses 231+ for speech signal processing and recognition using artificial intelligence.
  
[List of Patents for class 379 subclass 88.03]    88.03Voice dialing:
 This subclass is indented under subclass 88.01.  Voice activation or recognition wherein a call address signal is initiated in response to a spoken word.
  
[List of Patents for class 379 subclass 88.04]    88.04Voice controlled message management:
 This subclass is indented under subclass 88.01.  Voice activation or recognition wherein the audio message signal is manipulated or routed in response to a spoken word.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88.22,for a process for organizing or controlling the receipt or delivery of a voice message.
  
[List of Patents for class 379 subclass 88.05]    88.05Multilingual system or operation:
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system wherein the system is capable of manipulating or generating an audio message signal in more than one linguistical format.

SEE OR SEARCH CLASS:

704Data Processing: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression,   subclass 8 for a means or step to adapt to, process, or support plural languages in systems or in software, or to support the conventions or peculiarities of various national languages.
  
[List of Patents for class 379 subclass 88.06]    88.06Language selection:
 This subclass is indented under subclass 88.05.  Multilingual system or operation wherein the system provides options enabling a user to select the linguistic format for the manipulation, storage, retrieval, or generation of an audio message signal.
  
[List of Patents for class 379 subclass 88.07]    88.07Digital Signal Processing (DSP):
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system further comprising an operation in which an analog audio message signal is manipulated or processed in a digital format.

SEE OR SEARCH CLASS:

712Electrical Computers and Digital Processing Systems: Processing Architectures and Instruction Processing (e.g., Processors),   subclasses 34 through 35for an auxiliary processor configured to perform high speed data manipulations.
  
[List of Patents for class 379 subclass 88.08]    88.08Message signal analysis:
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system wherein the audio message signal is examined.
  
[List of Patents for class 379 subclass 88.09]    88.09Statistical analysis (e.g., time, date, length of message, etc.):
 This subclass is indented under subclass 88.08.  Message signal analysis further comprising a means to collect, organize, or interpret specific quantitative audio message signal data.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111+,for a means to determine the length, number, frequency, or cost of telephone usage combined with telephone equipment.
  
[List of Patents for class 379 subclass 88.1]    88.1Including data compression:
 This subclass is indented under subclass 88.08.  Message signal analysis further comprising a method for reducing the size of the audio message signal by eliminating unnecessary information, such as blank or redundant data for efficient storage, transmission, or organization.

SEE OR SEARCH CLASS:

341Coded Data Generation or Conversion,   subclass 60 for converting to or from codes comprising more than one shorter data words so that they can be handled by a machine component designed for longer data words.
708Electrical Computers: Arithmetic Processing and Calculating,   subclass 203 for representing a number or group of numbers by a smaller number of digits than that possessed originally or the inverse operation.
709Electrical Computers and Digital Processing Systems: Multiple Computer or Process Coordinating,   subclass 247 for multicomputer data transferring having a means to reduce the transfer payload volume or to recover the data from a compressed payload.
710Electrical Computers and Digital Data Processing Systems: Input/Output,   subclass 68 for data compression or expansion for improving transfer efficiency between peripheral devices.
  
[List of Patents for class 379 subclass 88.11]    88.11Display of message related information:
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system having a means to view data or information relating to the audio message signal in a visual format.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88.12,for an audio message storage, retrieval, or synthesis system having a visual or audio message notification.

SEE OR SEARCH CLASS:

345Computer Graphics Processing and Selective Visual Display Systems,   appropriate subclasses for a process or apparatus for selective electrical control of two or more light-generating or light-controlling display elements.
  
[List of Patents for class 379 subclass 88.12]    88.12Indication or notification of message:
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system further comprising an audio or visual signal alerting the user to the presence of a recorded or stored audio message signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88.11,for an audio message storage, retrieval, or synthesis system having a means to view data or information relating to an audio message signal.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 500+ for a conditional response indicating system.
  
[List of Patents for class 379 subclass 88.13]    88.13Multimedia system (e.g., voice output combined with fax, video, text, etc.):
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system further comprising a means to accept or transmit an audio message signal in a secondary format.
  
[List of Patents for class 379 subclass 88.14]    88.14Presentation format conversion:
 This subclass is indented under subclass 88.13.  Multimedia system having a means to convert the audio message signal data to a user specified format.
  
[List of Patents for class 379 subclass 88.15]    88.15Pager activation:
 This subclass is indented under subclass 88.13.  Multimedia system wherein a pager device is activated in response to an audio message signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88.01,for a voice activated audio message storage, retrieval, or synthesis system.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 7.2 through 7.63for a selective communication system with a paging means and 311.2 for a nonselective paging system.
  
[List of Patents for class 379 subclass 88.16]    88.16Voice message synthesis:
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system further comprising a means to formulate a system-generated spoken message.

SEE OR SEARCH CLASS:

704Data Processing: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression,   subclasses 258+ for a system wherein component parts of a speech signal are combined to produce a synthetic speech output.
  
[List of Patents for class 379 subclass 88.17]    88.17Interaction with an external nontelephone network (e.g., Internet):
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system wherein the telephone system is capable of transmitting and receiving audio message signal information over a secondary network.

SEE OR SEARCH THIS CLASS, SUBCLASS:

90.01+,for a telephone line or system in combination with a diverse electrical system or signaling.

SEE OR SEARCH CLASS:

709Electrical Computers and Digital Processing Systems: Multiple Computer or Process Coordinating,   appropriate subclassesfor multicomputer data transferring.
  
[List of Patents for class 379 subclass 88.18]    88.18Interacting voice message systems:
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system wherein a voice message signal is processed by plural intercommunicating messaging.
  
[List of Patents for class 379 subclass 88.19]    88.19Call source identification:
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system wherein a means is provided to disclose information regarding an originating call signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

88.11,for the display of message related information.
142,for calling number display or recording at called substation.
  
[List of Patents for class 379 subclass 88.2]    88.2Automatic Number Identification (ANI):
 This subclass is indented under subclass 88.19.  Call source identification wherein the disclosed information is an originating telephone number.
Note. A positive recitation of an Automatic Number Identification (ANI) is required for classification in this subclass.
  
[List of Patents for class 379 subclass 88.21]    88.21Caller identification received at substation:
 This subclass is indented under subclass 88.19.  Call source identification wherein the disclosed information relating to the incoming call is forwarded to a substation.
  
[List of Patents for class 379 subclass 88.22]    88.22Message management:
 This subclass is indented under subclass 67.1.  Audio message storage, retrieval, or synthesis system further including a process for organizing, directing, distributing, or switching an incoming or outgoing audio message signal.
  
[List of Patents for class 379 subclass 88.23]    88.23Controlled by subscriber or caller:
 This subclass is indented under subclass 88.22.  Call management system wherein the organization, distribution, or switching of an incoming or outgoing audio message signal is completed in response to an input from the message recipient or originator.
  
[List of Patents for class 379 subclass 88.24]    88.24By generated tone:
 This subclass is indented under subclass 88.23.  Subscriber or caller controlled audio signal management system wherein the controlling input is a system generated signal having a specified acceptable pitch.
  
[List of Patents for class 379 subclass 88.25]    88.25Message storage in centralized location (e.g., central office, PBX, etc.):
 This subclass is indented under subclass 88.23.  Subscriber or caller controlled audio message signal management system wherein the audio message signal is held in a centralized memory location.
  
[List of Patents for class 379 subclass 88.26]    88.26Recording voice message from nonsubscriber caller:
 This subclass is indented under subclass 88.25.  Centralized stored message wherein the stored audio message signal is generated by a system nonsubscriber.
  
[List of Patents for class 379 subclass 88.27]    88.27Separate storage for voice and control information:
 This subclass is indented under subclass 88.22.  Call management system wherein message information and system instructional information are stored in discrete memory locations.
  
[List of Patents for class 379 subclass 88.28]    88.28Solid state memory storage:
 This subclass is indented under subclass 88.22.  Call management system wherein the memory allocation is solid state.

SEE OR SEARCH CLASS:

365Static Information Storage and Retrieval,   appropriate subclasses for an apparatus or corresponding process for the static storage and retrieval of information.
  
[List of Patents for class 379 subclass 90.01]    90.01TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE):
 This subclass is indented under the class definition.  Subject matter wherein a nontelephone signal is transmitted over a conductor of telephone signals, or a telephone signal is transmitted over nontelephone electrical circuitry.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66,for a telephone carrier over a power line.
110,for a composite telephone set.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 538+ for signalling over a diverse electrical line.
370Multiplex Communications,   appropriate subclasses for simultaneous transmission of a telephone signal and another electrical communications signal, or multiplexing plural telephone signals, over a common channel.
  
[List of Patents for class 379 subclass 90.02]    90.02Using Internet:
 This subclass is indented under subclass 90.01.  Subject matter wherein the transmission involves TCP/IP (Transmission Control Protocol/Internetwork Protocol).
  
[List of Patents for class 379 subclass 91.01]    91.01Credit authorization:
 This subclass is indented under subclass 90.01.  Subject matter wherein the nontelephone signal is used to permit or deny a charge to an individual account over a telephone line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

144,for a credit card operated pay station.

SEE OR SEARCH CLASS:

235Registers,   subclasses 380+ for a credit card operated register having significant card reading structure.
340Communications: Electrical,   subclasses 5.4 through 5.42for credit authorization by intelligence comparison not limited to use of telephone equipment.
705Data Processing: Financial, Business Practice, Management, or Cost/Price Determination,   appropriate subclasses for business oriented applications for computers.
  
[List of Patents for class 379 subclass 91.02]    91.02At switching station:
 This subclass is indented under subclass 91.01.  Subject matter including a switching facility having structure or circuitry for credit transaction processing.
  
[List of Patents for class 379 subclass 92.01]    92.01Polling:
 This subclass is indented under subclass 90.01.  Subject matter wherein plural controlled devices transmit a personal or personal choice status signal in response to an interrogation signal.
(1) Note. The personal or personal choice signal may be successively transmitted.

SEE OR SEARCH CLASS:

348Television,   subclasses 14.01 through 14.16for two-way voice and video communications.
455Telecommunications,   subclass 2.01 for radio audience survey and use of telephone equipment.
725Interactive Video Distribution Systems,   subclass 24 for interactive opinion polling in a video distribution system.
  
[List of Patents for class 379 subclass 92.02]    92.02Televoting:
 This subclass is indented under subclass 92.01.  Subject matter wherein the personal or personal choice status signal is used to cast a vote.

SEE OR SEARCH CLASS:

705Data Processing: Financial, Business Practice, Management, or Cost/Price Determination,   subclass 12 for voting.
  
[List of Patents for class 379 subclass 92.03]    92.03Having central station equipment:
 This subclass is indented under subclass 92.01.  Subject matter including a central station with specific structure or circuitry for status signal processing.
  
[List of Patents for class 379 subclass 92.04]    92.04Having subscriber station equipment:
 This subclass is indented under subclass 92.01.  Subject matter including a user terminal with specific structure or circuitry for generating or transmitting the status signal.
  
[List of Patents for class 379 subclass 93.01]    93.01Having transmission of a digital message signal over a telephone line:
 This subclass is indented under subclass 90.01.  Subject matter for transfer of message information by either a multi-level pulse signal or a data signal consisting of a series of ones and zeros, over a line specifically described as a telephone line.

SEE OR SEARCH CLASS:

370Multiplex Communications,   appropriate subclasses for simultaneous voice and data communications.
375Pulse or Digital Communications,   subclass 222 for modems or data sets, per se.
709Electrical Computers and Digital Data Processing Systems: Multiple Computer or Process Coordinating,   appropriate subclassesfor data transferring among multiple computer and digital processing systems.
710Electrical Computers and Digital Data Processing Systems: Input/Output,   subclasses 1+ for transferring data from one or more peripherals to one or more computers or digital data processing systems for the latter to process, store, or further transfer or for transferring data from the computers or digital data processing systems to the peripherals.
  
[List of Patents for class 379 subclass 93.02]    93.02Access restricting:
 This subclass is indented under subclass 93.01.  Subject matter which permits or denies the rights to use remote digital computing or communication equipment.

SEE OR SEARCH CLASS:

707Data Processing: Database and File Management, Data Structures, Or Document Processing,   subclass 9 for privileged access to a database or file in a computer environment.
710Electrical Computers and Digital Data Processing Systems: Input/Output,   subclasses 36+ for digital data processing system Input/Out access regulating and subclasses 107+ for bus access regulating in a digital data processing system.
713Electrical Computers and Digital Processing Systems: Support,   subclasses 182 through 186for system access control based on cryptographic user identification.
  
[List of Patents for class 379 subclass 93.03]    93.03Personal identification:
 This subclass is indented under subclass 93.02.  Subject matter whereby access is granted by matching user characteristics (e.g., voiceprint, fingerprint, signature) of the person desiring access.

SEE OR SEARCH CLASS:

382Image Analysis,   subclasses 115+ for personnel identification.
  
[List of Patents for class 379 subclass 93.04]    93.04Two or more calls:
 This subclass is indented under subclass 93.02.  Subject matter whereby gaining access requires multiple calls.
  
[List of Patents for class 379 subclass 93.05]    93.05Terminal interface circuitry:
 This subclass is indented under subclass 93.01.  Subject matter having a specific electronic arrangement interrelating a device or equipment to the telephone line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

399,for connecting a telephone communications line to a central switching office or a subscriber station.
442,for connecting a device to the line by direct connection through the terminal.
  
[List of Patents for class 379 subclass 93.06]    93.06Digital:
 This subclass is indented under subclass 93.05.  Subject matter wherein the interface circuitry is connected to a telephone line in which the information is encoded as a series of ones and zeros.
  
[List of Patents for class 379 subclass 93.07]    93.07To plural lines or networks:
 This subclass is indented under subclass 93.05.  Subject matter wherein the interface circuitry is for connecting to at least two telephone lines or groups of stations.
  
[List of Patents for class 379 subclass 93.08]    93.08Transmission scheme (e.g., compression/decompression, transmission rate):
 This subclass is indented under subclass 93.01.  Subject matter including a particular detail of a methodology in which the message signal is conveyed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.31,for modulated signal transmission scheme.
100.17,for image data transmission scheme.

SEE OR SEARCH CLASS:

348Television,   subclasses 14.12 through 14.15for video signal transmission scheme.
  
[List of Patents for class 379 subclass 93.09]    93.09Switching between different terminal types (e.g., voice/data switch):
 This subclass is indented under subclass 93.01.  Subject matter including an arrangement for selecting between diverse communication modes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

100.15+,for switching to other communication modes in which the communication modes include a visual-graphic copy reproduction mode (e.g., facsimile mode).
  
[List of Patents for class 379 subclass 93.11]    93.11Among at least three terminal types:
 This subclass is indented under subclass 93.09.  Subject matter wherein the arrangement includes switching among at least three different modes.
  
[List of Patents for class 379 subclass 93.12]    93.12Sales, ordering, or banking system:
 This subclass is indented under subclass 93.01.  Subject matter wherein the transmitted digital message signal is used for financial transactions.

SEE OR SEARCH CLASS:

705Data Processing: Financial, Business Practice, Management, or Cost/Price Determination,   appropriate subclasses for business oriented applications for computers.
  
[List of Patents for class 379 subclass 93.13]    93.13Amusement (e.g., game, lottery):
 This subclass is indented under subclass 93.01.  Subject matter wherein the digital message signal is for conducting a recreational activity.

SEE OR SEARCH CLASS:

455Telecommunications,   subclass 3.06 for entertainment systems.
463Amusement Devices: Games,   subclass 41 for games with a telephonic communication link.
  
[List of Patents for class 379 subclass 93.14]    93.14Having switching station:
 This subclass is indented under subclass 93.01.  Subject matter including equipment which performs the functions of establishing and releasing connections and includes structure or circuitry for digital message signal processing.
  
[List of Patents for class 379 subclass 93.15]    93.15Having format conversion:
 This subclass is indented under subclass 93.14.  Subject matter wherein an electronic structure is particularly adapted for transforming the digital message signal from one form into another form (e.g., text-to-voice, voice-to-text, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

100.13,for image format conversion.
  
[List of Patents for class 379 subclass 93.16]    93.16Diverse networks (e.g., PSTN, ISDN):
 This subclass is indented under subclass 93.14.  Subject matter including at least two different types of telephone systems.
(1) Note. PSTN stands for Public Switched Telephone Network, and ISDN stands for Integrated Services Digital Network.
  
[List of Patents for class 379 subclass 93.17]    93.17Having station display:
 This subclass is indented under subclass 93.01.  Subject matter including a structure particularly adapted for conversion of a digital information signal into a visual message signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

28,for testing of such an instrument.
142,376, and 386, for subject matter drawn to perceptible display of supervisory control signals.

SEE OR SEARCH CLASS:

375Pulse or Digital Communications,   subclasses 219+ for a digital signal transceiver.
  
[List of Patents for class 379 subclass 93.18]    93.18Having tone code recognition for generating alphanumeric characters:
 This subclass is indented under subclass 93.17.  Subject matter including an arrangement for character or symbol pattern recognition to show letters of the alphabet or numerals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.27,for generating alphanumeric information by tone codes.

SEE OR SEARCH CLASS:

345Computer Graphics Processing and Selective Visual Display Systems,   subclasses 25+ for alphanumeric display and character generator.
  
[List of Patents for class 379 subclass 93.19]    93.19Having pressure or position sensitive surface (e.g., touch-screen, light pen):
 This subclass is indented under subclass 93.17.  Subject matter wherein the terminal display includes input means responsive to force or location along the display face.

SEE OR SEARCH CLASS:

178Telegraphy,   subclasses 18 and 87 for stylus and tablet.
345Computer Graphics Processing and Selective Visual Display Systems,   subclasses 173+ for touch panels, subclass 179 for stylus, and subclasses 180+ for light pen.
  
[List of Patents for class 379 subclass 93.21]    93.21Having conferencing:
 This subclass is indented under subclass 93.17.  Subject matter which enables three or more data terminals on distinct subscriber lines to be included in a single call connection.

SEE OR SEARCH THIS CLASS, SUBCLASS:

202,for telephone conferencing.

SEE OR SEARCH CLASS:

348Television,   subclasses 14.08 through 14.1for video conferencing.
370Multiplex Communications,   subclasses 260+ for special services with conferencing.
  
[List of Patents for class 379 subclass 93.22]    93.22At pay station:
 This subclass is indented under subclass 93.17.  Subject matter wherein the structure includes a public telephone from which calls can be paid for by means of currency, credit, or debit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

91.01+,for credit authorization.
143+,for check operated control (e.g., pay station).
  
[List of Patents for class 379 subclass 93.23]    93.23Having user information display (e.g., telephone number, name, address, etc.):
 This subclass is indented under subclass 93.17.  Subject matter wherein the visual message signal is personal data.

SEE OR SEARCH THIS CLASS, SUBCLASS:

142,for calling number display.
354,for called number display.
  
[List of Patents for class 379 subclass 93.24]    93.24Having electronic mail:
 This subclass is indented under subclass 93.17.  Subject matter wherein the information signal is assigned to a memory location for storage and retrieved by a station having access to the memory location (e.g., text mail).

SEE OR SEARCH THIS CLASS, SUBCLASS:

89.2+,for subscriber or caller control of central office audio message storage or retrieval.
100.08,for image electronic mailbox system.

SEE OR SEARCH CLASS:

358Facsimile and Static Presentation Processing,   subclass 402 for electronic mailbox.
  
[List of Patents for class 379 subclass 93.25]    93.25Having remote database (e.g., videotex system):
 This subclass is indented under subclass 93.17.  Subject matter including a database having structure or circuitry for supplying information in electronic form from the database to subscriber terminals.

SEE OR SEARCH THIS CLASS, SUBCLASS:

100.11,for image information retrieval.

SEE OR SEARCH CLASS:

358Facsimile and Static Presentation Processing,   subclass 403 for document filing and retrieval system.
455Telecommunications,   subclasses 3.03 and 3.04 for remote control of distribution.
725Interactive Video Distribution Systems,   appropriate subclasses, especially subclasses 86 through 104for user-requested video program system, subclasses 105-134 for video distribution with upstream communication, and subclasses 135-142 for one-way local video distribution system with local interaction.
  
[List of Patents for class 379 subclass 93.26]    93.26By voice frequency signal (e.g., tone code):
 This subclass is indented under subclass 93.01.  Subject matter wherein the pulse or data signal is specifically described as converted into one or more tones lying within the audible frequency spectrum.

SEE OR SEARCH CLASS:

375Pulse or Digital Communications,   subclasses 219+ for modems and digital transceivers, per se.
  
[List of Patents for class 379 subclass 93.27]    93.27Alphanumeric:
 This subclass is indented under subclass 93.26.  Subject matter including a structure particularly adapted for recognition of tone codes generated via dual-tone, multi-frequency signals into letters or numbers.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.18,for display of alphanumeric characters generated using tone code recognition.
  
[List of Patents for class 379 subclass 93.28]    93.28Modulated audio tone:
 This subclass is indented under subclass 93.26.  Subject matter wherein a pulse or data signal causes a variation in the frequency, phase, or amplitude of an audible tone.

SEE OR SEARCH CLASS:

375Pulse or Digital Communications,   subclass 222 for modems.
  
[List of Patents for class 379 subclass 93.29]    93.29Reconfigurable:
 This subclass is indented under subclass 93.28.  Subject matter wherein communication operating parameters can be reprogrammed to conform with different communication standards or perform different communication modes.
  
[List of Patents for class 379 subclass 93.31]    93.31Protocol:
 This subclass is indented under subclass 93.28.  Subject matter including particular details of transmission scheme.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.08,for transmission scheme, not limited to use of modem.
100.17,for image data transmission scheme.

SEE OR SEARCH CLASS:

348Television,   subclasses 14.12 through 14.15for video signal transmission scheme.
  
[List of Patents for class 379 subclass 93.32]    93.32Initial setup:
 This subclass is indented under subclass 93.31.  Subject matter including a particular start-up handshaking sequence.
  
[List of Patents for class 379 subclass 93.33]    93.33Having adjustable speed:
 This subclass is indented under subclass 93.31.  Subject matter wherein the transmission protocol includes different data transmission rates.
  
[List of Patents for class 379 subclass 93.34]    93.34Having recognition and selection:
 This subclass is indented under subclass 93.31.  Subject matter including determination of one of a plurality of modulator-demodulator types and for connecting to a compatible type.
  
[List of Patents for class 379 subclass 93.35]    93.35Having call-waiting:
 This subclass is indented under subclass 93.28.  Subject matter for signalling a first station in communication with a second station that a third station desires communication with the first station.

SEE OR SEARCH THIS CLASS, SUBCLASS:

215,for call waiting with telephone equipment.

SEE OR SEARCH CLASS:

370Multiplex Communications,   subclasses 259+ for special services.
455Telecommunications,   subclasses 414.1 through 417for special services in a radiotelephone system.
  
[List of Patents for class 379 subclass 93.36]    93.36Line powered:
 This subclass is indented under subclass 93.28.  Subject matter including particular circuitry for deriving power from the telephone line to data communication equipment (DCE).

SEE OR SEARCH THIS CLASS, SUBCLASS:

102.04,for remote control of power source.
  
[List of Patents for class 379 subclass 93.37]    93.37Having acoustic link:
 This subclass is indented under subclass 93.26.  Subject matter wherein a digital signalling device is connected to a telephone line by a sound wave passing between a complementary pair of electroacoustic transducers.

SEE OR SEARCH THIS CLASS, SUBCLASS:

78,for an acoustic link between a telephone answering device and a telephone line.
444,for a telephone acoustic coupler, per se.
  
[List of Patents for class 379 subclass 100.01]    100.01To produce visual-graphic copy (e.g., facsimile):
 This subclass is indented under subclass 90.01.  Subject matter where the nontelephone signal is a visual or graphic representation of a document for producing a visually readable reproduction at a receiving station.

SEE OR SEARCH CLASS:

358Facsimile and Static Presentation Processing,   subclasses 500 through 540for natural color facsimile, in general: and subclasses 400-304 for facsimile.
  
[List of Patents for class 379 subclass 100.02]    100.02Having detachable device (e.g., detachable storage medium, scanner):
 This subclass is indented under subclass 100.01.  Subject matter having an arrangement wherein an element can be separated from a main unit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

357,for insertable call signal generation circuitry (e.g., card).

SEE OR SEARCH CLASS:

358Facsimile and Static Presentation Processing,   subclass 473 for hand-held reader.
  
[List of Patents for class 379 subclass 100.03]    100.03Usage system:
 This subclass is indented under subclass 100.01.  Subject matter wherein data related to each transmission operation is recorded or generated.
  
[List of Patents for class 379 subclass 100.04]    100.04Communication charge calculation:
 This subclass is indented under subclass 100.01.  Subject matter wherein the cost of the transmission is tabulated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

111+,for usage measurement.
  
[List of Patents for class 379 subclass 100.05]    100.05Monitoring:
 This subclass is indented under subclass 100.01.  Subject matter wherein a condition of a visual-graphic copy reproduction is sensed or determined.

SEE OR SEARCH THIS CLASS, SUBCLASS:

1+,for diagnostic testing, malfunction indication, or electrical condition measurement.

SEE OR SEARCH CLASS:

358Facsimile and Static Presentation Processing,   subclasses 406 and 441 for facsimile calibrating and alarm.
  
[List of Patents for class 379 subclass 100.06]    100.06Communication status notification:
 This subclass is indented under subclass 100.01.  Subject matter wherein information relating to a transmission/reception or line state is indicated.
  
[List of Patents for class 379 subclass 100.07]    100.07Using mark sheet:
 This subclass is indented under subclass 100.01.  Subject matter performing operations based on information read from a marked form.

SEE OR SEARCH CLASS:

235Registers,   subclasses 375+ for systems controlled by data bearing records.
358Facsimile and Static Presentation Processing,   subclass 468 for facsimile control.
  
[List of Patents for class 379 subclass 100.08]    100.08Electronic mailbox:
 This subclass is indented under subclass 100.01.  Subject matter wherein the transmitted message is assigned to a memory location for storage and retrieved by a station having access to the memory location.

SEE OR SEARCH THIS CLASS, SUBCLASS:

89.2+,for subscriber or caller control of central office audio message storage or retrieval.
93.24,for electronic mail messaging system, not limited to use of facsimile equipment.

SEE OR SEARCH CLASS:

358Facsimile and Static Presentation Processing,   subclass 402 for electronic mailbox.
  
[List of Patents for class 379 subclass 100.09]    100.09Relay system:
 This subclass is indented under subclass 100.01.  Subject matter wherein the message is transmitted to some intermediate point, and at a later time, further retransmitted to a remote destination.

SEE OR SEARCH CLASS:

358Facsimile and Static Presentation Processing,   subclass 407 for facsimile relay system.
455Telecommunications,   subclasses 7+ for signal repeaters that may regenerate the repeated signal and which are used in radio systems.
  
[List of Patents for class 379 subclass 100.11]    100.11From a library:
 This subclass is indented under subclass 100.01.  Subject matter wherein the visual or graphic information accessed is from a collection of such information.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.25,for remote database, not limited to use of facsimile equipment.

SEE OR SEARCH CLASS:

358Facsimile and Static Presentation Processing,   subclass 403 for document filing and retrieval system.
  
[List of Patents for class 379 subclass 100.12]    100.12Connection to plural networks or lines:
 This subclass is indented under subclass 100.01.  Subject matter including connection to at least two telephone lines or networks.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.07,for plural networks or lines, not limited to use of facsimile equipment.
  
[List of Patents for class 379 subclass 100.13]    100.13Format conversion:
 This subclass is indented under subclass 100.01.  Subject matter having a specific structure for transforming the nontelephone signal to another form (e.g., image-to-voice, image-to-text, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.15,for format conversion at switching station.
  
[List of Patents for class 379 subclass 100.14]    100.14Call signal generation (e.g., auto-dial):
 This subclass is indented under subclass 100.01.  Subject matter wherein a called station address signal is transmitted.

SEE OR SEARCH THIS CLASS, SUBCLASS:

355+,for repertory or abbreviated call signal generation.

SEE OR SEARCH CLASS:

358Facsimile and Static Presentation Processing,   subclass 440 for telephone number or address of designator.
455Telecommunications,   subclass 564 for radiotelephone equipment with auto-dialing or repertory dialing.
  
[List of Patents for class 379 subclass 100.15]    100.15Having switching to other communication modes:
 This subclass is indented under subclass 100.01.  Subject matter including an arrangement enabling connection between different communication types.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.09+,for switching between different communication modes, not limited to use of facsimile equipment.
  
[List of Patents for class 379 subclass 100.16]    100.16Voice mode:
 This subclass is indented under subclass 100.15.  Subject matter wherein the different communication types include an intelligible human sound mode.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67.1+,for audio message storage, retrieval, or synthesis.
  
[List of Patents for class 379 subclass 100.17]    100.17Transmission scheme:
 This subclass is indented under subclass 100.01.  Subject matter including a particular detail of the transmission protocol.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.08,for transmission scheme, not limited to use of facsimile equipment.
93.31,for modulated signal transmission scheme.

SEE OR SEARCH CLASS:

348Television,   subclasses 14.12 through 14.15for video signal transmission scheme.
  
[List of Patents for class 379 subclass 101.01]    101.01Audio program distribution:
 This subclass is indented under subclass 90.01.  Subject matter where an audio program is transmitted to subscribers over a telephone system.

SEE OR SEARCH THIS CLASS, SUBCLASS:

87,for program distribution of dynamically retrieved audio signal (e.g., from a storage medium).

SEE OR SEARCH CLASS:

381Electrical Audio Signal Processing Systems and Devices,   subclasses 77+ for one-way audio signal program distribution.
455Telecommunications,   subclasses 3.01 through 3.06for radio program distribution, other than by telephone equipment.
725Interactive Video Distribution Systems,   for appropriate subclasses.
  
[List of Patents for class 379 subclass 102.01]    102.01Remote control:
 This subclass is indented under subclass 90.01.  Subject matter wherein the signal is used to operate a distant device over a telephone line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

74+,for remote control of a telephone answering device.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 825+ for remote control system not specified as using a telephone line.
  
[List of Patents for class 379 subclass 102.02]    102.02Communication device:
 This subclass is indented under subclass 102.01.  Subject matter wherein the device has the primary function of receiving or transmitting information.
  
[List of Patents for class 379 subclass 102.03]    102.03Entertainment appliance (e.g., TV, VCR, radio, etc.):
 This subclass is indented under subclass 102.02.  Subject matter wherein the device converts media signals into humanly perceivable signals, typically sight or sound, or records the media signals for later playback.

SEE OR SEARCH CLASS:

348Television,   subclass 734 for remote control device not specified as using a telephone line.
455Telecommunications,   subclasses 352+ for remote control of a radio receiver.
  
[List of Patents for class 379 subclass 102.04]    102.04Power source:
 This subclass is indented under subclass 102.02.  Subject matter wherein the control is directed toward applying electric energy to the communication equipment.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93.36,for power supply of modem.
  
[List of Patents for class 379 subclass 102.05]    102.05Of heating, ventilation, air conditioner (e.g., HVAC):
 This subclass is indented under subclass 102.01.  Subject matter wherein the device controls a climate or circulates air.
  
[List of Patents for class 379 subclass 102.06]    102.06Of physical entrance or exit lock:
 This subclass is indented under subclass 102.01.  Subject matter wherein the control restricts movement of a person by permitting or preventing ingress or egress through a door or other similar structural closure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

167+,for an intercom system.

SEE OR SEARCH CLASS:

70Locks,   appropriate subclasses for a lock.
235Registers,   subclass 382 for coded record controlled access control.
340Communications: Electrical,   subclasses 5.2 through 5.74for an electrical access control arrangement responsive to intelligence comparison.
  
[List of Patents for class 379 subclass 102.07]    102.07Having indication:
 This subclass is indented under subclass 102.01.  Subject matter wherein a condition or state of the controlled device is reported in humanly perceivable form.
  
[List of Patents for class 379 subclass 106.01]    106.01Remote indication over telephone line (e.g., telemetry):
 This subclass is indented under subclass 90.01.  Subject matter for providing a signal representing a sensed condition at a distant station via the telephone line.

SEE OR SEARCH THIS CLASS, SUBCLASS:

39+,for similar subject matter which is responsive to an emergency or alarm condition.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 500+ for sensed condition attainment signalling and subclasses 870.01+ for telemetering system.
  
     106.02 Patient monitoring:
 This subclass is indented under subclass 106.01.  Subject matter wherein the sensed condition includes medical data of an individual.

SEE OR SEARCH CLASS:

128Surgery,   subclass 904 for telephone telemetry.
  
[List of Patents for class 379 subclass 106.03]    106.03Meter reading:
 This subclass is indented under subclass 106.01.  Subject matter where the sensed condition is a measurement of a quantitative indicating device.

SEE OR SEARCH CLASS:

340Communications: Electrical,   subclasses 870.02+ for telemetering of a meter indication.
  
[List of Patents for class 379 subclass 106.04]    106.04Having power supply circuitry:
 This subclass is indented under subclass 106.03.  Subject matter including particular electrical devices for connecting electrical energy to the meter.
  
[List of Patents for class 379 subclass 106.05]    106.05Having ringing suppression:
 This subclass is indented under subclass 106.03.  Subject matter wherein the signal is exchanged between a central station and the subscriber"s telephone without causing the telephone bell to sound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

106.09,for ringing suppression, not limited to use of meter reading equipment.
  
[List of Patents for class 379 subclass 106.06]    106.06Having time window:
 This subclass is indented under subclass 106.03.  Subject matter wherein the sensed condition is transmitted to a central station at an appointed time period.
  
[List of Patents for class 379 subclass 106.07]    106.07Having interrogation signal:
 This subclass is indented under subclass 106.03.  Subject matter wherein the sensed condition is transmitted to a central station in response to a request signal initiated by the central station.

SEE OR SEARCH THIS CLASS, SUBCLASS:

106.11,for interrogation signal, not limited to use of meter reading equipment.
  
[List of Patents for class 379 subclass 106.08]    106.08Having line status detection:
 This subclass is indented under subclass 106.03.  Subject matter including an arrangement for sensing an electrical state of a subscriber circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

377,for line or loop condition detection.
  
[List of Patents for class 379 subclass 106.09]    106.09Ringing suppression:
 This subclass is indented under subclass 106.01.  Subject matter wherein the signal is exchanged between a central station and the subscriber"s telephone without causing the telephone bell to sound.

SEE OR SEARCH THIS CLASS, SUBCLASS:

106.05,for ringing suppression of meter reading equipment.
  
[List of Patents for class 379 subclass 106.11]    106.11Interrogation signal:
 This subclass is indented under subclass 106.01.  Subject matter wherein the signal is transmitted to a central station in response to a request signal initiated by the central station.

SEE OR SEARCH THIS CLASS, SUBCLASS:

106.07,for interrogation signal of meter reading equipment.
  
[List of Patents for class 379 subclass 108.01]    108.01Telegraphy:
 This subclass is indented under subclass 90.01.  Subject matter for transmitting a telephone signal over a telegraph circuit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

93+,for transmission of a digital message signal over telephone equipment.

SEE OR SEARCH CLASS:

178Telegraphy,   subclasses 79+ for transmitters and subclasses 118+ for receivers.
370Multiplex Communications,   subclass 214 for simultaneous telegraphy and telephony.
  
[List of Patents for class 379 subclass 108.02]    108.02Over telephone line:
 This subclass is indented under subclass 108.01.  Subject matter for transmitting a telegraph signal over a telephone line.
  
[List of Patents for class 379 subclass 110.01]    110.01COMPOSITE SUBSTATION OR TERMINAL (E.G., HAVING CALCULATOR, RADIO):
 This subclass is indented under the class definition.  Subject matter in which a telephone instrument also has structure or circuitry for performing a diverse independent (i.e., nontelephone) function.
(1) Note. There may be a relationship between the telephone and diverse function, as in diverse audio muting.

SEE OR SEARCH THIS CLASS, SUBCLASS:

90+,for a composite telephone further including transmission of diverse signals or over a diverse line.

SEE OR SEARCH CLASS:

455Telecommunications,   subclasses 344+ for a receiver combined with diverse art device.
708Electrical Computers: Arithmetic Processing and Calculating,   subclass 109 for a digital calculating computer combined with a telephone or other communication device.
  
[List of Patents for class 379 subclass 111]    111WITH USAGE MEASUREMENT (E.G., CALL OR TRAFFIC REGISTER):
 This subclass is indented under the class definition.  Subject matter which determines the length, number, frequency, or cost of telephone usage and is combined with telephone equipment.
(1) Note. The telephone usage determining equipment, per se, is classifiable elsewhere.
(2) Note. Such equipment often includes a register for counting calls, or determining time of usage.

SEE OR SEARCH THIS CLASS, SUBCLASS:

13,for testing of usage measurement equipment.

SEE OR SEARCH CLASS:

235Registers,   subclass 91 for a mechanical register operated by a telephone.
368Horology: Time Measuring Systems or Devices,   subclass 4 for a horological device controlled by a nominally recited telephone.
377Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems,   appropriate subclasses for an electrical counter or register, per se.
  
[List of Patents for class 379 subclass 112.01]    112.01Call traffic recording by computer or control processor:
 This subclass is indented under subclass 111.  Subject matter including a computer or control processor for counting and registering the number of telephone calls.
  
[List of Patents for class 379 subclass 112.02]    112.02Redundant processor or backup processor:
 This subclass is indented under subclass 112.01.  Subject matter wherein a primary processor or computer implements the functionality of telephone usage and if the primary processor fails, a secondary processor or computer is activated to take over its functionality.
  
[List of Patents for class 379 subclass 112.03]    112.03Estimating blocking probability:
 This subclass is indented under subclass 112.01.  Subject matter wherein an estimation is performed to determine the possibility of a network being congested due to incoming call traffic to avoid being unable to service calls.
  
[List of Patents for class 379 subclass 112.04]    112.04Threshold or limiting control (e.g., gapping control):
 This subclass is indented under subclass 112.01.  Subject matter wherein a load capacity of a network component is pre-established or established dynamically by a network to avoid congestion.
  
[List of Patents for class 379 subclass 112.05]    112.05Optimization network configuration:
 This subclass is indented under subclass 112.01.  Subject matter wherein a network manager implements a plurality of options to service incoming call traffic by using different network components to avoid congestion.
  
[List of Patents for class 379 subclass 112.06]    112.06Generalized statistics about telephone network usage:
 This subclass is indented under subclass 112.01.  Subject matter which gathers data to determine how network components are being utilized.
  
[List of Patents for class 379 subclass 112.07]    112.07Carrier usage data:
 This subclass is indented under subclass 112.06.  Subject matter which determines a number of incoming calls being serviced by a carrier or the frequency by which a carrier is being used.
  
[List of Patents for class 379 subclass 112.08]    112.08Trunk or path usage data:
 This subclass is indented under subclass 112.06.  Subject matter which determinates the frequency of using a communication line to service incoming calls.
  
[List of Patents for class 379 subclass 112.09]    112.09Specialized exchange:
 This subclass is indented under subclass 112.06.  Subject matter which collects data or information about usage of 1-800, 1-900 and other virtual numbers.
  
[List of Patents for class 379 subclass 112.1]    112.1Traffic rate for overload:
 This subclass is indented under subclass 112.06.  Subject matter wherein data or information is gathered over a period of time to determine the congestion or overload rate of a network.
  
[List of Patents for class 379 subclass 114.01]    114.01Call charge metering or monitoring:
 This subclass is indented under subclass 111.  Subject matter which determines the usage cost for a particular telephone set or the cost to a subscriber.
  
[List of Patents for class 379 subclass 114.02]    114.02Least cost:
 This subclass is indented under subclass 114.01.  Subject matter wherein a service provider with the best competitive price or the cheapest cost among a plurality of providers is selected to service a subscriber.
  
[List of Patents for class 379 subclass 114.03]    114.03Billing computing software or program:
 This subclass is indented under subclass 114.01.  Subject matter wherein a service provider utilizes a computer software or program in determining the cost of a telephone service provided to a subscriber.
  
[List of Patents for class 379 subclass 114.04]    114.04Charge error detection:
 This subclass is indented under subclass 114.01.  Subject matter wherein charging apparatus is monitored to detect any error associated with determining telephone cost for any given subscriber.
  
[List of Patents for class 379 subclass 114.05]    114.05Special service fees (e.g., customized feature):
 This subclass is indented under subclass 114.01.  Subject matter wherein a subscriber is charged for customized features in addition to a standardized telephone bill.
  
[List of Patents for class 379 subclass 114.06]    114.06Variable rate:
 This subclass is indented under subclass 114.01.  Subject matter which charges a subscriber for telephone services as a function of factors affecting a network.
  
[List of Patents for class 379 subclass 114.07]    114.07Bandwidth:
 This subclass is indented under subclass 114.06.  Subject matter wherein a subscriber is charged based on availability of bandwidth allocation.
  
[List of Patents for class 379 subclass 114.08]    114.08Traffic:
 This subclass is indented under subclass 114.06.  Subject matter wherein a subscriber is charged based on pending call traffic data.
  
[List of Patents for class 379 subclass 114.09]    114.09Time controlled:
 This subclass is indented under subclass 114.06.  Subject matter wherein a subscriber is charged based on the time of the day, or a specific day or month.
  
[List of Patents for class 379 subclass 114.1]    114.1Incentive billing:
 This subclass is indented under subclass 114.01.  Subject matter wherein a subscriber is offered a special charge rate to encourage usage of network services.
  
[List of Patents for class 379 subclass 114.11]    114.11Gaming:
 This subclass is indented under subclass 114.1.  Subject matter wherein a subscriber engaged in a telephone call can be offered opportunities to win a reward.
  
[List of Patents for class 379 subclass 114.12]    114.12Discount or bargaining:
 This subclass is indented under subclass 114.1.  Subject matter wherein a subscriber is offered a cost lower than the standard cost based on telephone usage or plan subscribed to.
  
[List of Patents for class 379 subclass 114.13]    114.13Advertisement:
 This subclass is indented under subclass 114.1.  Subject matter wherein a service provider provides information detailing rewards or offers for telephone usage.
  
[List of Patents for class 379 subclass 114.14]    114.14Fraud detection or control:
 This subclass is indented under subclass 114.01.  Subject matter wherein fraudulent usage of a telephone or a subscribers account is determined and monitored.
  
[List of Patents for class 379 subclass 114.15]    114.15Calling card:
 This subclass is indented under subclass 114.01.  Subject matter wherein a subscriber is enable to make a call by billing a card account number provided by a subscriber.
  
[List of Patents for class 379 subclass 114.16]    114.16Recharging or replenishing an account or calling card:
 This subclass is indented under subclass 114.15.  Subject matter wherein a subscriber can re-activate a calling card or an account by adding more money to the account or card.
  
[List of Patents for class 379 subclass 114.17]    114.17Monitoring account or card usage balance:
 This subclass is indented under subclass 114.15.  Subject matter wherein an account is monitored based on telephone usage.
  
[List of Patents for class 379 subclass 114.18]    114.18Having complementary item (e.g., novelty):
 This subclass is indented under subclass 114.15.  Subject matter wherein items other than a card or in conjunction with a card with calling indicia can be used in making telephone calls.
  
[List of Patents for class 379 subclass 114.19]    114.19Credit card:
 This subclass is indented under subclass 114.15.  Subject matter wherein a card, other than a calling card, used in paying for other services can be used in making telephone calls after verification.
  
[List of Patents for class 379 subclass 114.2]    114.2Pre-paid calling account or card:
 This subclass is indented under subclass 114.15.  Subject matter wherein a subscriber has a pre-established account for telephone usage.
  
[List of Patents for class 379 subclass 114.21]    114.21Redirect billing:
 This subclass is indented under subclass 114.01.  Subject matter wherein a party other than a calling party can be billed for telephone usage.
  
[List of Patents for class 379 subclass 114.22]    114.22Split billing or cost sharing:
 This subclass is indented under subclass 114.21.  Subject matter wherein a plurality of subscribers can arrange to pay for a part of telephone usage cost.
  
[List of Patents for class 379 subclass 114.23]    114.23Third party billing:
 This subclass is indented under subclass 114.21.  Subject matter wherein a party other than the calling or called party assumes responsibility for telephone cost.
  
[List of Patents for class 379 subclass 114.24]    114.241-800 billing:
 This subclass is indented under subclass 114.21.  Subject matter wherein a service provider pays for telephone usage cost when a subscribers calls to inquire about or order a provided service.
  
[List of Patents for class 379 subclass 114.25]    114.251-900 billing:
 This subclass is indented under subclass 114.21.  Subject matter wherein a subscriber pays for telephone cost associated with inquiring about a service being offered by a service provided or when ordering a service.
  
[List of Patents for class 379 subclass 114.26]    114.26Based on unique account code:
 This subclass is indented under subclass 114.21.  Subject matter wherein a subscribers with a plurality of accounts can have telephone usage billed to a specific account based on a triggered code.
  
[List of Patents for class 379 subclass 114.27]    114.27Portable number billing:
 This subclass is indented under subclass 114.01.  Subject matter wherein a subscriber is billed for telephone usage associated with an assigned unique directory number which can be used in several geographic location.
  
[List of Patents for class 379 subclass 114.28]    114.28Advanced intelligent billing network (e.g., a billing service control processor):
 This subclass is indented under subclass 114.01.  Subject matter wherein a switch queries a centralized service control point database for billing information.
  
[List of Patents for class 379 subclass 114.29]    114.29Using more than one advanced intelligent elements (e.g., accessing multiple AIN databases):
 This subclass is indented under subclass 114.28.  Subject matter wherein a plurality of service control point databases may be queried for billing information or a service management system (SMS) may be queried by a service control point for billing information.
  
[List of Patents for class 379 subclass 115.01]    115.01Interexchange billing operation:
 This subclass is indented under subclass 114.01.  Subject matter wherein the charge determination is made at one exchange and then transmitted to another related to the calling station.
(1) Note. Included herein is the Centralized Automatic Message Accounting (CAMA) where the accounting for several central exchanges is handled at only one office.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219through 241, for interexchange switching or signaling.
  
[List of Patents for class 379 subclass 115.02]    115.02Long distance billing:
 This subclass is indented under subclass 115.01.  Subject matter wherein a subscriber is billed for calls completed by an interexchange carrier.
  
[List of Patents for class 379 subclass 115.03]    115.03Interfacing with foreign exchange:
 This subclass is indented under subclass 115.01.  Subject matter wherein interexchange carriers located in different countries co-operate to complete a call between a calling party and a called party.
  
[List of Patents for class 379 subclass 116]    116Hardcopy record generating:
 This subclass is indented under subclass 115.  Subject matter for producing a permanent record of the call charge or basis therefor.
  
[List of Patents for class 379 subclass 117]    117Of station on polystation or party line:
 This subclass is indented under subclass 114.  Subject matter which determines a call charge of a terminal on a party line

SEE OR SEARCH THIS CLASS, SUBCLASS:

177+,for a party line telephone system.
  
[List of Patents for class 379 subclass 118]    118Identification of station:
 This subclass is indented under subclass 117.  Subject matter which determines to which station on a party line a call is charged.

SEE OR SEARCH THIS CLASS, SUBCLASS:

183,for party line station identification.
  
[List of Patents for class 379 subclass 119]    119Hardcopy record generating (e.g., ticket printing):
 This subclass is indented under subclass 114.  Subject matter which produces a permanent record showing a numerical quantity indicating the call charge or basis therefor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

116,for generating a hardcopy record at an exchange other than that to which the calling station is connecting.
  
[List of Patents for class 379 subclass 120]    120With line identification or class of service determination:
 This subclass is indented under subclass 119.  Subject matter which ascertains the identity, or service entitlement, of a calling line.
  
[List of Patents for class 379 subclass 121.01]    121.01At local exchange carrier (e.g., central switching office):
 This subclass is indented under subclass 114.01.  Subject matter wherein the call charge metering or monitoring is performed at a toll call network switching office to which a call is connected and passed through.
(1) Note. Example of a toll call network switching office herein is the long distance telephone service provider.
  
[List of Patents for class 379 subclass 121.02]    121.02