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

1994-02-28

1995-12-12

Hofsass, Jeffery A.

Telephonic communications

Plural exchange network or interconnection

Connection call model

379201, 379207, H04M 300

Patent

active

054757495

ABSTRACT:
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.

REFERENCES:
patent: 5018191 (1991-05-01), Catron et al.
patent: 5237604 (1993-08-01), Ryan
patent: 5255315 (1993-10-01), Bushnell
patent: 5311572 (1994-05-01), Friedes et al.
patent: 5311585 (1994-05-01), Armstrong et al.
patent: 5329581 (1994-07-01), Friedes et al.
patent: 5333184 (1994-07-01), Doherty et al.
patent: 5333185 (1994-07-01), Burke et al.
patent: 5333186 (1994-07-01), Gupta
patent: 5341415 (1994-08-01), Baran

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