Abbreviated dialing between PBX and Centrex systems using a...

Details Abbreviated dialing between PBX and Centrex systems using a... Abbreviated dialing between PBX and Centrex systems using a...

2004-09-21

2010-02-16

Matar, Ahmad F (Department: 2614)

Telephonic communications

Plural exchange network or interconnection

Multi-pbx interconnection

C379S216010, C370S352000

Reexamination Certificate

active

07664251

ABSTRACT:
An abbreviated dialing feature over a Voice over Internet Protocol (VoIP) platform facilitates abbreviated dialing between a first phone system that serves a first customer location and a second phone system that serves a second customer location. The first and second phone systems may comprise two Centrex groups, two PBXs or a Centrex group and a PBX.

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International Search Report and Written Opinion of the International Searching Authority for International Application No. PCT/US05/29890, Mailed on Feb. 3, 2006.

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