Setting up a communication session within a wireless communications system

摘要

In an embodiment, an originating communication device within a wireless communications system sends a call request to a server to initiate a communication session with a target communication device, and also sends, along with the call request, a session description request, the session description request requesting alerting data to be sent to the target communication device from the server in addition to a call announce message for announcing the communication session to the at least one target communication device, the alerting data describing a nature of the communication session. The server sends the call announce message and the alerting data to the target communication device. The target communication device receives the call announce message and the alerting data, notifies a user of the target communication device of the announced communication session and outputs the alerting data to the user of the target communication device in conjunction with the notification.

主权项

1. A method of setting up a communication session arbitrated by a given server at an originating communication device within a wireless communications system, comprising:
sending a full-duplex call request in a half-duplex message to the given server to initiate a full-duplex communication session with at least one target communication device; and sending, along with the full-duplex call request in the half-duplex message, a session description request in half-duplex, the session description request requesting alerting data to be sent in half-duplex to the at least one target communication device from the given server in addition to the full-duplex call request in the half-duplex message for requesting the full-duplex communication session to the at least one target communication device, the alerting data describing a nature of the requested full-duplex communication session, and wherein the session description request comprises a forced answer data instruction configured to force the at least one target communication device to accept the full-duplex call request.