Network system

Details Network system Network system

1998-03-26

1999-08-10

Nguyen, Chau

Multiplex communications

Diagnostic testing

Fault detection

370410, H04Q 130

Patent

active

059369442

ABSTRACT:
In a network system according to the present invention, in the case where a plurality of calls are set between specific terminal and the other terminal unit to conduct communication, when a communication fault is detected in a frame relay network, a representative call is decided from the plurality of calls, and all the calls except for the representative call are released. Thereafter, a call cut message including information relating to the calls to be released is transmitted from the frame relay network. In the specific terminal, the calls except for the representative call are released on the basis of the information of the calls to be released which is contained in the call cut message to transmit the call release message of the representative call. In the frame relay network, the representative call is released according to the call release message to transmit the call release completion message. Then, in the specific terminal, the representative call is released.

REFERENCES:
patent: 5418847 (1995-05-01), Murata
patent: 5436889 (1995-07-01), Matsumoto et al.
patent: 5452293 (1995-09-01), Wilkinson et al.
patent: 5519699 (1996-05-01), Ohsawa

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