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Sound meter............................................................................................................................................... 92
13.Push to talk .................................................................................................. 93
Push to talk menu .................................................................................................................................... 94
Connect to and disconnect PTT............................................................................................................ 94
Make and receive a PTT call .................................................................................................................. 95
Make a dial out PTT call ...................................................................................................................... 95
Make a group call ................................................................................................................................. 96
Make a one-to-one call ...................................................................................................................... 96
Receive a PTT call.................................................................................................................................. 97
Callback requests...................................................................................................................................... 97
Send a callback request ...................................................................................................................... 98
Respond to a callback request .......................................................................................................... 98
Save the callback request sender ..................................................................................................... 99
Add a one-to-one contact ..................................................................................................................... 99
Create and set up groups .................................................................................................................... 100
Add a group ......................................................................................................................................... 100
Receive an invitation ........................................................................................................................ 101
PTT settings ............................................................................................................................................. 102
14.Sports.......................................................................................................... 103
Compass ................................................................................................................................................... 103
Calibrate the compass ...................................................................................................................... 104
Set the declination ............................................................................................................................ 104
Set and reset the direction.............................................................................................................. 105
Stopwatch................................................................................................................................................ 105
Countdown timer................................................................................................................................... 106
Audio message ....................................................................................................................................... 106
Thermometer........................................................................................................................................... 107