Abbreviated dialing between PBX and Centrex systems using a VoIP platform

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7664251
APP PUB NO 20060062372A1
SERIAL NO

10946358

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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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First Claim

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Patent Owner(s)

  • AT&T INTELLECTUAL PROPERTY I, L.P.;SBC KNOWLEDGE VENTURES, L.P.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lowmaster, Robert Paul Bartlett, US 8 37

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