Abstract: A device may identify a proxy connection associated with a first device and a second device. An application buffer of the proxy connection may be associated with a first buffer size for at least one of the first device or the second device. The proxy connection may be associated with a video communication. The device may determine a set of parameters relating to the proxy connection. The device may determine a buffer allocation for the proxy connection based on the set of parameters. The device may perform an alteration to the application buffer of the proxy connection to cause the application buffer of the proxy connection to be associated with a second buffer size. The second buffer size may be different from the first buffer size.

Abstract: A device may identify a proxy connection associated with a first device and a second device. An application buffer of the proxy connection may be associated with a first buffer size for at least one of the first device or the second device. The proxy connection may be associated with a video communication. The device may determine a set of parameters relating to the proxy connection. The device may determine a buffer allocation for the proxy connection based on the set of parameters. The device may perform an alteration to the application buffer of the proxy connection to cause the application buffer of the proxy connection to be associated with a second buffer size. The second buffer size may be different from the first buffer size.

Abstract: A method, Group Application Server, and mobile device are provided that coordinate an operation of multiple mobile devices of a same user in a group call. When the multiple mobile devices join the group call, a first mobile device of the multiple mobile devices determines that it is an active device and provides an indication of such to the Group Application Server. In response to receiving the indication, the Group Application Server identifies a second mobile device, of the multiple mobile devices, that is a non-active device and one or more of modifies subsequent communications with the second mobile device or conveys a behavior modification message to the second mobile device. In another embodiment of the present invention, the first mobile device may indicate that it is the active device directly to the second mobile device and the second mobile device modify its behavior accordingly.

Abstract: An enhanced push to talk (PTT) method, a network, and a PTT server provide floor control and media traffic optimization for push to talk over cellular (PoC). Specifically, multiple Session Initiation Protocol (SIP) sessions are contemplated between controlling and participating servers while only requiring a single Real Time Protocol (RTP) session for media and a single Real Time Control Protocol (RTCP) session for floor control. In the single RTP and RTCP session, the synchronization source identifier (SSRC) can be used to differentiate between users equipment (UEs) at the controlling and participating servers.

Abstract: A method, Group Application Server, and mobile device are provided that coordinate an operation of multiple mobile devices of a same user in a group call. When the multiple mobile devices join the group call, a first mobile device of the multiple mobile devices determines that it is an active device and provides an indication of such to the Group Application Server. In response to receiving the indication, the Group Application Server identifies a second mobile device, of the multiple mobile devices, that is a non-active device and one or more of modifies subsequent communications with the second mobile device or conveys a behavior modification message to the second mobile device. In another embodiment of the present invention, the first mobile device may indicate that it is the active device directly to the second mobile device and the second mobile device modify its behavior accordingly.

Abstract: A method for providing presence notification for PTT chat group communications includes a server receiving, from a communication device of a member of a chat group, a session initiation message to start a session for the PTT chat group. The session initiation message includes a member-selected priority. The server generates an event notification message that includes an indication that the chat group is active and has been assigned a priority, and sends the event notification message to communication devices of at least some of the other chat group members. Additionally, where a group priority has been assigned to the chat group, the group priority is assigned to the session. Otherwise, the member-selected priority is assigned to the session.

Abstract: An enhanced push to talk (PTT) method, a network, and a PTT server provide floor control and media traffic optimization for push to talk over cellular (PoC). Specifically, multiple Session Initiation Protocol (SIP) sessions are contemplated between controlling and participating servers while only requiring a single Real Time Protocol (RTP) session for media and a single Real Time Control Protocol (RTCP) session for floor control. In the single RTP and RTCP session, the synchronization source identifier (SSRC) can be used to differentiate between users equipment (UEs) at the controlling and participating servers.

Abstract: A method for providing presence notification for PTT chat group communications includes a server receiving, from a communication device of a member of a chat group, a session initiation message to start a session for the PTT chat group. The session initiation message includes a member-selected priority. The server generates an event notification message that includes an indication that the chat group is active and has been assigned a priority, and sends the event notification message to communication devices of at least some of the other chat group members. Additionally, where a group priority has been assigned to the chat group, the group priority is assigned to the session. Otherwise, the member-selected priority is assigned to the session.