| 摘要 |
A Push-To-All (PTA) service system and method provides additional information. A PTA server provided with the additional information of a PTA terminal having the floor in a session from the corresponding PTA terminal through a TBCP_REQUEST message provides the additional information to other PTA terminals participating in the session through a TBCP_TAKEN message. The other PTA terminals are thereby provided with various pieces of information about the PTA terminal having the floor.
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