| 摘要 |
A system ( 20 ) of establishing a rapid PTT call setup in a multi-wireless network environment, can include a first wireless network ( 24 and 26 ) such as an iDEN network optimized for rapid push-to-talk call setups in typically less than one second and a second wireless network ( 23 and 27 ) such as a CDMA wireless network operatively coupled to the first wireless network. The system can further include a communication protocol among an originating mobile subscriber unit ( 22 ), a target mobile subscriber unit ( 28 ), the first wireless network, and the second wireless network, where the first wireless network and the second wireless network receive a request for a PTT session and the PTT session is set up on the second wireless network using the first wireless network. The system can further include a PTT server ( 25 ) operatively coupled to the first wireless network and the second wireless network.
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