METHOD AND SYSTEM FOR IMPLEMENTING OF PUSH-TO-TALK SERVICE BY USING SIP AND SDB FOR USE IN MOBILE DATA COMMUNICATION NETWORK

摘要

The present invention is CDMA 2000 mobile PTT service method using the SDB from the SIP-based PTT service system of the communication data network to reduce the call setup time for PTT origination and PTT incoming call using the SIP and SDB to provide a PTT service efficiently and It relates to the system.; The present invention in order to realize this, the PTT terminal, a call to the SIP server, MRC, PTT members to duplicate the sound of a mobile communication network and the PDSN, the calling party to connect to the PTT terminal and the SIP for the transformation and processing of the message and voice for chakbalsin It includes a presence server that manages to display and a PTT server PTT service subscriber status change information.; According to the present invention, as well as using the SDB from the SIP-based PTT service system, the CDMA 2000 cellular data network to reduce the traffic generated in the network by decreasing the call setup time for PTT origination and PTT incoming call, PTT services the obvious advantage of providing the speed and connectivity may soon be possible to provide satisfactory services to the PTT service subscribers.