Connections between a toll network and multiple local networks

Details Connections between a toll network and multiple local networks Connections between a toll network and multiple local networks

H - Electricity

04

Q

H04Q 3/60 (2006.01) H04Q 3/00 (2006.01) H04Q 3/66 (2006.01)

Patent

CA 2137592

An arrangement for routing toll calls to a predominant local exchange carrier (LEC) or to a competitive access provider (CAP). An egress switch of an interexchange (toll) carrier translates the called directory number office code to determine whether that code serves a CAP. If so, an exception table is searched to identify the CAP; if the called number is not in the exception table, the call is routed to the predominant LEC. Calls may also be routed to a customer who is served by a, CAP and the predominant LEC via either of these local carriers. The billing record identifies an originating and/or a terminating CAP for the call. Optionally or alternatively, the ingress IXC switch may access a data base to determine the CAP or predominant LEC serving a called customer; the ingress IXC switch then routes the call to an IXC egress switch serving the carrier that serves the called customer. Advantageously, this arrangement efficiently serves calls using a CAP to provide part of the connection.

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