Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2005-12-12
2010-11-23
Kincaid, Lester (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S329000, C455S436000, C455S437000
Reexamination Certificate
active
07839826
ABSTRACT:
During (101) a communication session for a plurality of user platforms wherein at least one of the user platforms is on hold and wherein the communication session is presently occurring in a first network and is terminable by a Session Initiation Protocol server as comprises a part of that first network, one establishes (102) in the first network a Session Initiation Protocol instance as corresponds to the communication session wherein the Session Initiation Protocol instance comprises, at least in part, session context information for the user platform that is on hold. Then, following a handoff of bearer support of the communication session from the first network to a second network, one uses (104) the Session Initiation Protocol instance to maintain the hold status of the user platform that is on hold with the Session Initiation Protocol server subsequent to the handoff such that the Session Initiation Protocol server does not terminate the communication session.
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Idnani Ajaykumar R.
Liu Yi-Cheng
Panchal Rajendra A.
Promenzio Edgardo L.
Khan Mehmood B
Kincaid Lester
Motorola Inc.
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