Patent ID: 7711381

Claim:
A method for supporting a plurality of multimedia types of a communication service in a server, the method comprising the steps of: receiving a session participation request message from a session open request Push-to-Talk (PTT) over Cellular (PoC) client, the session participation request message including at least one session open request message among a plurality of multimedia types; transmitting the session participation request message including the at least one session open request message to at least one session participation PoC client based on the session participation request message; receiving a first response message in response to the session participation request message from the at least one session participation PoC client, the first response message including media type information of the at least one session participation PoC client; storing the media type information of the at least one session participation PoC client in a memory; and transmitting, to the session open request PoC client, a second response message in response to the at least one session participation PoC client, independent of the media type information of the at least one session participation PoC client.