Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2007-06-07
2010-12-14
Trinh, Tan (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S519000, C455S090200, C455S003060
Reexamination Certificate
active
07853280
ABSTRACT:
A method of managing a Push-To-Talk over Cellular communication session includes establishing, with a first user equipment, a Session Initiation Protocol Push-To-Talk session that includes a Session Initiation Protocol Push-To-Talk server and at least one second user equipment. The method also includes designating, with the first user equipment, either the Session Initiation Protocol Push-To-Talk server or one of the at least one second user equipment, to act as an arbiter of a media stream. The method further includes transmitting, with the first user equipment, while engaged in the Session Initiation Protocol Push-To-Talk session, the media stream directly to at least one of the at least one second user equipment without receiving a transmit instruction from the Push-To-Talk server.
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Agulnik Anatoly
Miller Trent J.
Sadiq Rummana S.
Motorola Mobility, Inc.
Trinh Tan
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