H.323 user, service and service provider mobility framework for the multimedia intelligent networking
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United States of America Patent
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May 22, 2012
Grant Date -
Apr 30, 2009
app pub date -
Dec 24, 2008
filing date -
Sep 28, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a method and system for assuring H.323 alias address portability to an H.323 user in real-time H.323 multimedia communications where the H.323 user is registered with a home gatekeeper for the home zone of the H.323 user. Alias address portability may be obtained using a central database that is known to the administrative zones and is used for alias address mapping, or alternatively, may be obtained by using a distributed database. The method may be implemented by: sending, by the H.323 user, a message with a called H.323 entity's alias address, to the home gatekeeper to originate a call to the called H.323 entity; confirming that the alias address, services, and service providers are portable; converting the alias address to a called routable alias address for the called H.323 entity and sending the alias address to the H.323 user; and placing the call to the called H.323 entity.
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