Path replacement scheme

Details Path replacement scheme Path replacement scheme

1997-04-30

2000-06-06

Weaver, Scott L.

Telephonic communications

Plural exchange network or interconnection

With interexchange network routing

379207, H04M 700

Patent

active

060728663

ABSTRACT:
In a telecommunications network which supports path replacement, an improved path replacement scheme is described for use after a supplementary service call has been carried out. The basic call and the supplementary call involve at least a basic call originating node, a diverting node and a diverted-to node of the telecommunications network. Where several methods are provided for carrying out the supplementary service, an identifier is included in one of the messages sent to the diverted-to node which identifies which method is intended for, or has been used for the supplementary service call. In response to this identifier, the diverted-to node either invokes a path replacement when the supplementary service call has been established over a non-optimum path or suppresses path replacement if the call is known to be optimum.

REFERENCES:
patent: 5790638 (1998-08-01), Bertacchi
International Standard ISO/IEC 13863: 1995 (E), First Edition Nov. 1, 1995; Annex A "Circumstances in Which ANF-Pr Might be Invoked".

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