Claims
- 1. A method of optimizing calls set up in a private telecommunication network including two subnetworks using the QSIG protocol and the Session Initialization Protocol (SIP), respectively, when a first terminal belonging to the subnetwork using the SIP requests the setting up of a call with a server associated with a first switch belonging to the subnetwork using the QSIG protocol and said call must be transferred to a second terminal belonging to the subnetwork using the SIP, the two subnetworks being connected by a QSIG/SIP gateway associated with a second switch of the subnetwork using the QSIG protocol, the method consisting in conventionally establishing a first call between the first terminal and the first switch and a second call between the first switch and the second terminal and then joining the two calls in the first switch so that the first and second terminals communicate via the gateway, the first switch, and the second switch; and then using conventional functions of the QSIG protocol and the SIP to set up a third call between said first terminal and said second terminal exclusively within said subnetwork using the SIP and then to clear down said first call and said second call.
- 2. A switch using the QSIG protocol for use in a private telecommunication network including two subnetworks using the QSIG protocol and the Session Initialization Protocol (SIP), respectively, which switch includes software means for using classic functions of the QSIG protocol as follows: when a first terminal belonging to the subnetwork using the SIP has set up a first call with a server associated with a first switch belonging to the subnetwork using the QSIG protocol and said call must be transferred to a second terminal belonging to the subnetwork using the SIP, the two subnetworks being connected by a QSIG/SIP gateway associated with a second node of the subnetwork using the QSIG protocol, and when the server has conventionally established a second call between the first switch and the second terminal and has then joined the two calls so that the first and second terminals communicate via the gateway, the first switch and the second switch command the setting up of a third call between said first terminal and said second terminal exclusively within said subnetwork using the SIP and then command clearing down said first call and said second call.
Priority Claims (1)
Number |
Date |
Country |
Kind |
02 10 324 |
Aug 2002 |
FR |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is based on French Patent Application No. 02 10 324 filed Aug. 14, 2002, the disclosure of which is hereby incorporated by reference thereto in its entirety, and the priority of which is hereby claimed under 35 U.S.C. §119.