| US 7,586,857 B2 | ||
| Fast network SIP/SDP procedures for conference operations upon request from end user with optimization of network resources | ||
| Richard Paul Ejzak, Wheaton, Ill. (US); Eric Harold Henrikson, Redmond, Wash. (US); Chung-Zin Liu, Naperville, Ill. (US); and Hong Xie, Downers Grove, Ill. (US) | ||
| Assigned to Alcatel-Lucent USA Inc., Murray Hill, N.J. (US) | ||
| Filed on Apr. 01, 2003, as Appl. No. 10/405,764. | ||
| Prior Publication US 2004/0196867 A1, Oct. 07, 2004 | ||
| Int. Cl. H04L 12/16 (2006.01) | ||
| U.S. Cl. 370—260 [370/352] | 18 Claims |
| 1. An apparatus, comprising:
a network controller operatively coupled to a resource controller via a SIP interface link, the network controller operatively
coupled to a first SIP server via a SIP interface link and a SIP conference control interface link;
the network controller operatively coupled to at least one further SIP server via a signaling interface link;
the resource controller operatively coupled to network resources via a predetermined interface link;
the network resources operatively coupled to a first media server via a media interface link;
the first media server operatively coupled to the first end user via a first respective user equipment media interface link;
and
the network resources operatively coupled to at least one further media server via a further media interface link;
wherein the network controller and the SIP servers exchange call control information, and wherein the network controller is
operatively coupled to the media servers;
wherein the network controller and the resource controller exchange resource control information, the resource controller
operatively coupled to network resources;
wherein the network controller employs a session description protocol within SIP to exchange resource control information
with the resource controller using third party call control procedures; and
wherein media of a conference call between respective users is communicated over a bearer path between the network controller
and the media servers, and wherein the network resources provide media translations between respective users.
|