SIP server

Multiplex communications – Pathfinding or routing – Through a circuit switch

Reexamination Certificate

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Details

C370S353000

Reexamination Certificate

active

07639676

ABSTRACT:
The number of simultaneous connections to a SIP server is increased without degrading overall performance. If it is judged that, when a newly requested call is accepted, the number of calls whose call control data is stored in a call processing memory or the amount of the call control data stored in the call processing memory would exceed an upper limit, the call control data stored in the call processing memory for a busy call is saved in an external storage device. As the frequency of occurrence of an event is low in the case of a busy call, it becomes possible to accept the new call without degrading overall performance.

REFERENCES:
patent: 2002/0176557 (2002-11-01), Burger
patent: 2003/0058838 (2003-03-01), Wengrovitz
patent: 2003/0224781 (2003-12-01), Milford et al.
patent: 2004/0213209 (2004-10-01), O'Connor et al.
patent: 2005/0154793 (2005-07-01), Khartabil
patent: 2005/0169227 (2005-08-01), Dowling
patent: 04-165747 (1992-06-01), None
patent: 06-098361 (1994-04-01), None
patent: 06-169496 (1994-06-01), None
patent: 06-177983 (1994-06-01), None
patent: 07-058747 (1995-03-01), None
patent: 2000-201220 (2000-07-01), None
patent: WO 0033549 (2000-06-01), None
patent: WO 0211372 (2002-02-01), None
Giordano, S. et al., “Managing Multimedia Traffic in IP Integrated over Differentiated Services: SIP Dynamic Signaling Inter-Working,” Proceedings of the 36th Annual Hawaii International Conference on System Sciences, 2003, Jan. 6-9, 2003. pp. 8.

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