Nortel Networks Corporation

Jason Gerrit Emery

William D Gentry

Samuel Henry Christie, Iv

Tunc Mustafa Kahveci

A residential access node (RAN) running a RAN platformwhich includes means for interfacing a plurality of peripheral equipment such as analog (POTS) phones, standard televisions, computers, IP telephones, and high definition televisionsto a packet data network. The Network Access Provider RAN platformmanages sessions among Customer Premises RAN platformsand Application Service Provider RAN platformsover high bandwidth connections. The Customer Premises RAN platformalso determines the number and type of data packets entering or departing via the packet data network. Such an architecture allows for the efficient transfer of services (data content) from Application Service Providers to individual network access subscribers by seamlessly accommodating various data types and providing an integrated metering and billing mechanism managed by the Network Access Provider.

Method and computer system for managing data exchanges among a plurality of network nodes in a managed packet network

The present invention provides an architecture for a media gateway to identify and register with multiple media gateway controllers for various types of voice and data services, along with having the media gateway appear to each of these media gateway controllers as a single, dedicated control entity. A logical layer, referred to as a virtualizer, is associated with each media gateway and appears to the media gateway as a single media gateway controller. To each media gateway controller the virtualizer supports, the virtualizer appears as a single media gateway. In essence, the virtualizer is a protocol manager and message router. The virtualizer supports the registration of multiple media gateways and then creates virtual gateways based on requirements of the media gateway controllers serving these virtual gateways. Preferably, subscribers associated with endpoints handled by the media gateway are grouped into a virtual gateway being served by a select media gateway controller or group thereof.

Dynamic association of endpoints to media gateway controllers

A system and method of PSTN based network roaming and SCP based subscriber management for internet telephony systems. When a call is incoming to the central office of a subscriber's home service area which supports packet data network telephony , such as for instance IP telephony, a home location register translates the directory number into an IP address, URL address, or electronic mail address much the same that a local number portability node re-routes calls for non-IP telephony systems. When a subscriber is roaming in another network , the roamed into (visited) gateway signals back to the home location register of the subscriber's network and registers its (i.e., the visited gateway's) public switching telephone network telephone directory number and the IP address assigned to the subscriber while connected to the visited network . When subsequent calls are incoming to the subscriber's home network switch, the home location register provides the ten (10) digit directory number of the visited gateway and the new IP address rather than the home gateway telephone number and IP address of the subscriber.

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Apex, NC, United States of America

Jason Gerrit Emery