Caller-controlled routing to non-SIP/non-TEL URI destinations for an IMS-based ENUM query

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United States of America Patent

PATENT NO 8085757
APP PUB NO 20070104184A1
SERIAL NO

11268670

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A telephone number of the callee is received from a caller device. An Internet protocol Multimedia Subsystem (IMS)-based telephone number mapping (ENUM) query is constructed based on the telephone number of the callee. An ENUM database is queried based on the ENUM query. If a response to the ENUM query is absent a Session Initiation Protocol (SIP) Uniform Resource Indicator (URI) or a telephone (TEL) URI, the telephone number is resolved into one or more non-SIP/non-TEL URIs usable to communicate with the callee. The caller is enabled to use the caller device or other devices to select which of the one or more non-SIP/non-TEL URIs to use to communicate with the callee. For each caller-selected non-SIP/non-TEL URI, communication in a protocol associated with the URI is initiated between the caller and the callee using the caller device or other devices.

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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
Ku, Bernard Siu-Man Plano, US 7 213
Yasrebi, Mehrad Austin, US 162 3285

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