Terminal to-terminal communication connection control method using IP transfer network
First Claim
1. A communication system, wherein:
- said communication system includes a communication network,said communication network includes plural servers,a terminal T1 is connected to said communication network,a terminal T2 or a server W2 is connected to said communication network,a server S1 receives an IP packet including a telephone number or a host name of said terminal T2 or said server W2, a server D1 receives said telephone number or said host name of said terminal T2 or said server W2 from said server S1,based on said telephone number or host name of said terminal T2 or said server W2, said server D1 replies an IP address S2A of a server S2 administering and controlling a communication of said terminal T2 or said server W2 to said server S1,a control of a communication between said terminal T1 and said terminal T2 or said server W2 by using IP packet, is carried out by said server S1 and S2, and,said communication between said terminal T1 and said terminal T2 or said server W2 by using IP packet, is carried out via said communication network and is not carried out via said server S2.
2 Assignments
0 Petitions
Accused Products
Abstract
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 line signal 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 this 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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Citations
12 Claims
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1. A communication system, wherein:
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said communication system includes a communication network, said communication network includes plural servers, a terminal T1 is connected to said communication network, a terminal T2 or a server W2 is connected to said communication network, a server S1 receives an IP packet including a telephone number or a host name of said terminal T2 or said server W2, a server D1 receives said telephone number or said host name of said terminal T2 or said server W2 from said server S1, based on said telephone number or host name of said terminal T2 or said server W2, said server D1 replies an IP address S2A of a server S2 administering and controlling a communication of said terminal T2 or said server W2 to said server S1, a control of a communication between said terminal T1 and said terminal T2 or said server W2 by using IP packet, is carried out by said server S1 and S2, and, said communication between said terminal T1 and said terminal T2 or said server W2 by using IP packet, is carried out via said communication network and is not carried out via said server S2. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A communication system, wherein:
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said communication system includes a communication network, said communication network includes plural servers, a terminal T1 is connected to said communication network, a terminal T2 or a server W2 is connected to said communication network, a server S1 receives an IP packet including a telephone number or host name of said terminal T2 or said server W2, an IP address of a server S2 which administers a communication control of said terminal T2 or said server W2, is obtained based on said telephone number or said host name of said terminal T2 or said server W2, a control of a communication between said terminal T1 and said terminal T2 or said server W2 by using IP packet, is carried out by said server S1 and S2, and, said communication between said terminal T1 and said terminal T2 or said server W2 by using IP packet, is carried out via said communication network and is not carried out via said server S2. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification