Importance

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Abstract

A method and system for processing a software defined network (SDN) call initiated by a network adjunct platform (NAP) over a Small Scale Adjunct Primary Rate Interface (SSA PRI) in a telecommunications network on a call-by-call basis is disclosed. An SDN subscriber triggers the NAP to initiate the SDN call. The NAP forwards set-up data to an originating toll switch programmed to accept the set-up data from the NAP. After receipt of the set-up data, the originating toll switch determines if the forwarded set-up data classifies the call as an SDN call. If the forwarded set-up data contains SDN parameters, the originating toll switch processes and routes the call initiated by the NAP as an SDN call. The originating toll switch is also able to process and route non-SDN calls utilizing the same SSA PRI used for SDN calls. The need for separate dedicated trunk groups for SDN subscribers is alleviated.

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First Claim