Method and apparatus for routing calls

Details Method and apparatus for routing calls Method and apparatus for routing calls

2008-07-08

2008-07-08

Nguyen, David Q (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S352000, C370S466000, C455S441000, C455S445000, C455S436000

Reexamination Certificate

active

10967571

ABSTRACT:
A communication unit (CU) (109, 111) network controller (113) and corresponding methods (603-609) are described that facilitate selectively routing calls. The CU includes a transceiver (403) suitable to support an air interface with a local area network (LAN) (101) and with a wide area network (WAN) (105) and a controller (405) that is coupled to and controlling the transceiver. These are each and collectively configured to determine when a bearer leg within the WLAN will not support a call attempt over the bearer leg and responsive to so determining, initiate the call over another bearer leg, e.g. within the LAN or the WAN. The determining includes, for example, receiving a message (703, 707, 713) that indicates or implies that the call can not be supported.

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