Abstract: An embodiment of the present invention discloses a method for revoking a talk burst, which includes: entering a pending release state by a talk burst after a client having the talk burst releases the talk burst initiatively; monitoring a duration of the talk burst in the pending release state; and revoking the talk burst when the duration of the talk burst in the pending release state exceeds a preset duration. An embodiment also discloses an apparatus for revoking a talk burst. By applying certain embodiments of the present invention, after a client initiatively releases a talk burst so that the talk burst enters a pending release state, the talk burst can be revoked in time and the waiting time of the client is saved.

Abstract: A method for granting a client talk burst (TB) includes the following steps. a push to talk over cellular (PoC) server receives a TB request message from a TB requesting client. If the TB requesting client is a client with the preemptive priority, the PoC server revokes a TB taken by a permitted client, and grants the TB to the client with the preemptive priority. Meanwhile, the disclosure further provides a system for granting a terminal TB and a PoC server. Through the method, system, and the PoC server provided by the disclosure, it is ensured that the client at the preemptive level may grab the TB taken by the client with a lower TB priority simply through pressing a key once, so as to enhance the users' experience.

Abstract: An embodiment of the present invention discloses a method for revoking a talk burst, which includes: entering a pending release state by a talk burst after a client having the talk burst releases the talk burst initiatively; monitoring a duration of the talk burst in the pending release state; and revoking the talk burst when the duration of the talk burst in the pending release state exceeds a preset duration. An embodiment also discloses an apparatus for revoking a talk burst. By applying certain embodiments of the present invention, after a client initiatively releases a talk burst so that the talk burst enters a pending release state, the talk burst can be revoked in time and the waiting time of the client is saved.