Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2011-03-01
2011-03-01
Lee, John (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S412200, C455S414100, C455S515000
Reexamination Certificate
active
07899478
ABSTRACT:
A method of acquiring interoperability between a push to talk server and a chat server is disclosed. A push to talk server comprises an interface adapted to receive requests from another server to send messages to push to talk clients via the push to talk server. A chat server comprises an interface adapted to send to the push to talk server a request for permission to send chat messages to push to talk clients. A computer program product is described for communicating messages in a communication network comprising a push to talk server and a chat server.
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Lee John
Nixon & Vanderhye P.C.
Telefonaktiebolaget LM Ericsson (publ)
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