US 7,609,828 B2
Telephone terminal, call system and terminal control program
Shozo Kabeya, Gamagori (Japan)
Assigned to Brother Kogyo Kabushiki Kaisha, Nagoya (Japan)
Filed on Aug. 28, 2003, as Appl. No. 10/649,892.
Claims priority of application No. 2002-251150 (JP), filed on Aug. 29, 2002.
Prior Publication US 2004/0052345 A1, Mar. 18, 2004
Int. Cl. H04M 3/42 (2006.01); H04M 7/00 (2006.01)
U.S. Cl. 379—201.01  [379/210.01; 379/230] 34 Claims
OG exemplary drawing
 
1. A telephone terminal provided with a telephone connection unit for connecting a line to another party's telephone terminal as a telephone terminal on the other end of the line through a telephone line network, for performing a voice call with the other party's telephone terminal through the telephone line network, the telephone terminal comprising:
an audio input/output unit provided in addition to the telephone connection unit and capable of inputting/outputting audio signals;
a switch unit for switching an output destination of audio signals based on audio input from a transmitter/receiver and an input source of audio signals to be outputted as audio from the transmitter/receiver between the telephone line network and the audio input/output unit according to an operation of a user; and
a control unit for disconnecting the line to the other party's telephone terminal through the telephone line network when a predetermined control condition is satisfied in a state in which the line to the other party's telephone terminal is connected by the connection unit and the output destination and input source of audio signals are switched to the audio input/output unit by the switch unit.