Session initiation protocol-based routing support apparatus and method
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United States of America Patent
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Issued Date -
Apr 20, 2006
app pub date -
May 6, 2004
filing date -
May 6, 2004
priority date (Note) -
Abandoned
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Abstract
A Session Initiation Protocol (SIP) proxy is dedicated, at least in part, to supporting routing of communications for a plurality of clients (such as push-to-talk mobile clients) in a given region. In a preferred embodiment, such support exists notwithstanding that at least some of the clients are able to present any of a plurality of differing user identifiers. In particular, differing user identifiers are nevertheless recognized and used by the SIP proxy(ies) to effect compatible provision of a service such as push-to-talk services.
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