Abstract: The present invention provides a method involving at least one mobile unit having at least one first session with a base station router. The method includes vacating at least one first session associated with the at least one mobile unit.

Abstract: The present invention provides a method involving at least one mobile unit having at least one first session with a base station router. The method includes determining at least one activity level associated with said at least one first session and allocating memory to the at least one first session based on the at least one determined activity level.

Abstract: The present invention provides a method involving at least one mobile unit having at least one first session with a base station router. The method includes vacating at least one first session associated with the at least one mobile unit.

Abstract: The present invention provides a method involving at least one mobile unit having at least one first session with a base station router. The method includes determining at least one activity level associated with said at least one first session and allocating memory to the at least one first session based on the at least one determined activity level.

Abstract: In a telecommunications system (100), a method and apparatus for priority queuing of callers requesting an opportunity to speak during a push-to-talk call is disclosed. The method includes defining a group for a call in response to a user input (210, 410), assigning a priority level designation to the at least one participant (220, 420), and granting access to transmit speech in a push-to-talk call based on the priority level (270, 280, 290, 300). The apparatus includes a first server (150) and a second server (140) communicatively coupled to the first server. The second server is programmed to implement the steps given above.

Abstract: In a telecommunications system (100), a method and apparatus for buffering the initial speech of an initial speaker in a push-to-talk call is disclosed. The method includes the steps of determining at least one participant or group to call (410, 510), sending a call request to the at least one participant or group (520), determining if the at least one participant or group is registered with the telecommunications system, notifying the initial speaker to begin speaking after determining at least one participant is registered with the telecommunications system but prior to connecting all called parties, receiving and digitizing voice packets from the initial speaker, storing the digitized data packets in a storage medium and transmitting the digitized voice packets when a predetermined packet transmission triggering event occurs.