Patent ID: 8437791

Claim:
A method for controlling a talk time for a Push to Talk Over Cellular (PoC) user, the method comprising the steps of: determining whether a talk time limit of a PoC client that is transferring a talk burst is close at hand; when the talk time limit is close at hand, determining whether a floor requester who makes a request for a floor is in a floor list for storing the floor requester; when the floor requester is not in the floor list, extending the floor and transferring the talk burst without sending a message notifying that the talk time limit has nearly elapsed; when the floor requester is in the floor list, determining whether the PoC client who is currently talking has a priority lower than that of the floor requester; and when the PoC client who is currently talking has a priority lower than that of the floor requester, sending the message notifying that the talk time limit has nearly elapsed to the PoC client and terminating a talk after transferring the talk burst up to the talk time limit.