Computer program products for routing phone calls to a PSTN or a packet switched network based on called number

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United States of America Patent

PATENT NO 8873542
APP PUB NO 20080095353A1
SERIAL NO

11960221

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A phone call is selectively routed to a public switched telephone network or to a packet switched network based on a called number to which the phone call is directed. A phone call may be made as a Voice-Over-Internet-Protocol call through, for example, the Internet except when a user dials an emergency number, in which case the call is made to the public switched telephone network.

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Patent Owner(s)

  • AT&T INTELLECTUAL PROPERTY I, L.P.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Reid, Laura Alpharetta, US 3 154

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