SIP-based user mobility providing apparatus and method

Details SIP-based user mobility providing apparatus and method SIP-based user mobility providing apparatus and method

2007-11-06

2007-11-06

Gary, Erika A. (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S395200

Reexamination Certificate

active

10882604

ABSTRACT:
Disclosed are an SIP-based user mobility service providing apparatus and method using user position information obtained by a sensing apparatus. When a user enters a specific region, a gateway including a sensing management module carries out SIP registration for several terminals existing in the specific region in place of user agents of the terminals. The sensing management module transmits an SIP registration message to an SIP proxy server and notifies the terminals of the completion of SIP registration. Then, the user receives a call using the same kind of a terminal as a specific terminal previously set on the basis of a user's preferences among the terminals in the specific region.

REFERENCES:
patent: 2003/0048195 (2003-03-01), Trossen
patent: 2003/0154293 (2003-08-01), Zmolek
patent: 2004/0218605 (2004-11-01), Gustafsson et al.
patent: 2005/0021976 (2005-01-01), Trossen
patent: 100179510 (1998-11-01), None
patent: 1020030001672 (2003-01-01), None
Ubiquitous Computing Using SIP, 8 pages.
Ubiquitous Computing Using SIP, 8 pages, no date provided.

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