Method and system for providing registration-based SIP NAT...

Details Method and system for providing registration-based SIP NAT... Method and system for providing registration-based SIP NAT...

2004-03-26

2008-08-12

Orgad, Edan (Department: 2619)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S261000, C370S392000, C370S410000

Reexamination Certificate

active

07411917

ABSTRACT:
A system for providing network access translation device traversal to facilitate communications is provided. The system includes a network access translation (NAT) device, a first Session Initiation Protocol (SIP) client located on the interior of the NAT device, a second SIP client located on the exterior of the NAT device, and a proxy server configured to maintain registration information relating to the first SIP client and the NAT device. The proxy server is further configured to allow the second SIP client to initiate contact with the first SIP client and establish a communication session using the registration information. The communication session is established by traversing the NAT device.

REFERENCES:
patent: 6359896 (2002-03-01), Baker et al.
patent: 6829769 (2004-12-01), Cranston et al.
patent: 6993595 (2006-01-01), Luptowski et al.
patent: 7197560 (2007-03-01), Caslin et al.
patent: 7272650 (2007-09-01), Elgebaly et al.

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