Terminal-to-terminal communication connection control method...

Details Terminal-to-terminal communication connection control method... Terminal-to-terminal communication connection control method...

H - Electricity

04

L

H04L 12/66 (2006.01) H04L 29/02 (2006.01) H04L 29/06 (2006.01) H04M 11/06 (2006.01) H04Q 3/64 (2006.01)

Patent

CA 2543224

Both a connection server and a relay connection server are installed in an IP transfer network; a function similar to a line connection control of a subscriber exchanger is applied to a connection server; a function similar to a line connection control of a relay exchanger is applied to the relay connection server; and a terminal-to-terminal communication connection control method with using the IP transfer network is realized in such a manner that a telephone set and a terminal such as an IP terminal and a video terminal transmit/receive an initial address message, an address completion message, a call pass message, a response message, a release message and a release completion message, which can be made in a 1-to-1 correspondence relationship with line connection control messages of the common channel signalling system. Furthermore, while an address administration table is set to a network node apparatus of an IP transfer network, means for registering addresses of the terminals into the address administration table is employed, so that an IP packet communication by a multicast manner can be realized with improving information security performance.

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