Routing calls to facilitate call handover

Details Routing calls to facilitate call handover Routing calls to facilitate call handover

2008-07-01

2008-07-01

Mehrpour, Naghmeh (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S439000

Reexamination Certificate

active

07395065

ABSTRACT:
A wireless communication unit (CU) (FIG.4), corresponding network controller (FIG.5), and methods (FIG.8, etc) operate to route calls and facilitate a call handover from one wireless network to another. The CU comprises a transceiver403suitable to support an air interface with a first and second wireless communication network304, 305; a memory415operable to store information431suitable for identifying an enterprise controller; and a controller405configured to facilitate setting up a call. The controller thereafter if the call needs to be handed over from one to another of the first and second communication network, uses the information to facilitate identification of a unique one of a plurality of enterprise controllers for effecting a hand over of the call.

REFERENCES:
patent: 5978679 (1999-11-01), Agre
patent: 2002/0035699 (2002-03-01), Crosbie
patent: 2002/0085516 (2002-07-01), Bridgelall
patent: 2003/0134638 (2003-07-01), Sundar et al.
patent: 2005/0148299 (2005-07-01), Buckley

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