Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-06-01
2010-12-07
Shah, Chirag G (Department: 2477)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
Reexamination Certificate
active
07848336
ABSTRACT:
Anchoring a communication session for a mobile node involves a signaling node that intercepts a routing information request sent by a switching center of a circuit-switched network. The routing information request requests routing information for the communication session. Subscription information associated with the mobile node is retrieved. Whether the mobile node is eligible to be anchored in a packet-switched network is established. Anchoring of the communication session in the packet-switched network is initiated if the mobile node is eligible to be anchored in the packet-switched network.
REFERENCES:
patent: 2006/0291419 (2006-12-01), McConnell et al.
3GPP Technical Specification 23.806 v7.0.0 (Dec. 2005).
3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Voice Call Continuity between CS and IMS Study (Release 7); 3GPP TR 23.806 V1.6.0 Technical Report; Global System for Mobile Communications, 47 pages, Oct. 2005.
Grayson Mark
Hamel Eric
Ramsay Stephen
Baker & Botts L.L.P.
Cisco Technology Inc.
Shah Chirag G
Zhou Yong
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