Method for a session initiation protocol push-to-talk terminal to indicate answer operating mode to an internet protocol push-to-talk network server

摘要

A method performed by a push-to-talk communication device (20), and an apparatus for the same, to communicate an answer mode. The method includes sending a Session Initiation Protocol (SIP) Publish message from the push-to-talk communication device to a SIP/Internet Protocol (IP) core (34). The SIP Publish message includes the answer mode.