Communication system for controlling a call portion

Details Communication system for controlling a call portion Communication system for controlling a call portion

2004-09-17

2009-06-09

Tsang, Fan (Department: 2614)

Multiplex communications

Pathfinding or routing

C370S401000, C370S409000

Reexamination Certificate

active

07545798

ABSTRACT:
To provide a communication apparatus which is used in a VoIP telephone system and which can make connections with the minimum partners even in case an access cannot be made to a server managing a call connection. In case a call control unit401of a communication apparatus4acquires a telephone number by a call-initiate and requests the communication connection with a communication partner apparatus corresponding to said telephone number for the server, the call control unit401requests a communication connection addressed to an IP address corresponding to said telephone number, when no response is obtained from said server and when the IP address corresponding to said telephone number is stored in a correspondence storage unit403b, so that the call control unit401performs a call connection processing directly with the connection partner thereby to make a communication connection by the VoIP.

REFERENCES:
patent: 2001/0004361 (2001-06-01), Kobayashi
patent: 2002/0071424 (2002-06-01), Chiu et al.

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