Handoff between a SIP network and a cellular communication...

Details Handoff between a SIP network and a cellular communication... Handoff between a SIP network and a cellular communication...

2011-04-05

2011-04-05

Edouard, Patrick N (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S352000, C370S328000, C455S436000, C455S439000, C455S444000

Reexamination Certificate

active

07920520

ABSTRACT:
Handoff between a wireless SIP network and a cellular communication system is provided. A system is designed to provide nomadic cellular services including voice to a SIP-enabled device.

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