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US Patent 7480287 Communication terminal device, communication method and electronic mail server

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Patent abstractTimelineTable: Further ResourcesReferences
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Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
74802871
Patent Inventor Names
Yoshifumi Tanimoto1
Date of Patent
January 20, 2009
1
Patent Application Number
107131581
Date Filed
November 17, 2003
1
Patent Primary Examiner
‌
Gerald Gauthier
1
Patent abstract

A communication terminal device includes a connection establishing unit which establishes a connection by a call control protocol with a destination device designated by an IP telephone number, a communication protocol requesting unit which request a presentation of a plurality of communication protocols which can be supported by the destination device over the connection, a communication protocol selecting unit which selects one communication protocol which the communication terminal device itself can support from the communication protocols presented from the destination device as a response to the request by the communication protocol requesting unit, and a communication unit which communicates with the destination device over the connection by the communication protocol selected by the communication protocol selecting unit.

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