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METHOD AND APPARATUS FOR FACILITATING A PTT SESSION INITIATING USING AN IP BASED PROTOCOL
METHOD AND APPARATUS FOR FACILITATING A PTT SESSION INITIATING USING AN IP BASED PROTOCOL
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机译:使用基于IP的协议促进PTT会话启动的方法和装置
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摘要
Various embodiments are described to address the need for providing substantially reduced PTT call setup times and more efficient wireless bandwidth utilization for PTT sessions utilizing an IP-based protocol. The use of non-IP messaging between an originating MS (101) and PCF (131) and a target MS (102) and PCF (132), the use of IP-based messaging between the PCFs, the use of access channel signaling by the originating MS, and the generation of SIP responses by a target PCF on behalf of the target MS are described. Embodiments incorporating some or all of these protocol changes, can provide either, or both, reduced end-to-end call setup time for PTT as it presently exists in IS-2000 systems or reduced bandwidth consumption.
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