What is Push to Talk concept in Mobile phones
Its features are:
1. Can quickly carry out "one to one" or "one to many" call, the same as using the intercom call machine.
2. Have to wait after dialing the phone compared to the "one key" in 3 seconds after pressing the call button can be turned around, speak to one second delay is also within close professional walkie-talkie.
3. And the only close-talk walkie-talkie different PTT service can be accessible to mobile phone networks can cover the place, almost no distance limitations.
4. And radio rely on high investment compared to private network, mobile phone intercom can make full use of CDMA network operators to significantly reduce operating costs and the user cost.
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