System for establishing and managing multimedia PoC session...

Details System for establishing and managing multimedia PoC session... System for establishing and managing multimedia PoC session...

2007-10-02

2010-11-30

Trinh, Tan (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S519000, C455S090200, C455S412200

Reexamination Certificate

active

07844293

ABSTRACT:
Provided are a system for establishing and managing a Push To Talk (PTT) over Cellular (PoC) session between PoC clients supporting various media types, a method thereof, and a User Equipment (UE) therefor. When a PoC client performing an Open Mobile Alliance (OMA) PoC multimedia call service supports a plurality of media types, and media types supported by PoC clients are not common, a PoC session can be established to support only media types set to be transmitted in a first response message after the session is established. In addition, a method of efficiently managing a session by updating the session when a newly supported media type is provided or when a recipient of an existing media type is changed is suggested.

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