H.323 user, service and service provider mobility framework for the multimedia intelligent networking
First Claim
1. A method comprising:
- at a gatekeeper of a first domain, the gatekeeper associated with a location database, the location database comprising home user location information and visiting user location information;
receiving, from a calling H.323 entity registered with the gatekeeper and located in the first domain, a message comprising an alias address of a called H.323 entity, the message originating a call to the called H.323 entity, the called H.323 entity registered as a home entity in a second domain, the called H.323 entity registered as a visitor in a third domain;
receiving a called routable alias address for the called H.323 entity, the called routable alias address associated with the alias address of the called H.323 entity, the called routable alias address received from a non-gatekeeper database external to the fist domain, the second domain, and the third domain; and
sending the called routable alias address to the calling H.323 entity.
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Accused Products
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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Citations
23 Claims
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1. A method comprising:
at a gatekeeper of a first domain, the gatekeeper associated with a location database, the location database comprising home user location information and visiting user location information; receiving, from a calling H.323 entity registered with the gatekeeper and located in the first domain, a message comprising an alias address of a called H.323 entity, the message originating a call to the called H.323 entity, the called H.323 entity registered as a home entity in a second domain, the called H.323 entity registered as a visitor in a third domain; receiving a called routable alias address for the called H.323 entity, the called routable alias address associated with the alias address of the called H.323 entity, the called routable alias address received from a non-gatekeeper database external to the fist domain, the second domain, and the third domain; and sending the called routable alias address to the calling H.323 entity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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8. The method of claim , further comprising:
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determining that the calling H.323 entity is visiting the first domain and associated with a first H.323 service provider; and placing the call via a second H.323 service provider.
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Specification