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Motorola ASTRO APX O2 Control Head Mobile Radio User Manual: In-call User Alert; Emergency Operation

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8 The radio returns to the Home screen.
Press the Menu Select button directly below OK to return to
the main screen for Contacts.

In-Call User Alert

You can enable and disable voice transmission, if needed.
1 Make sure you are in Home mode where the default zone
and mode are being displayed.
(on the keypad mic.) to scroll to the Vmut.
3 Press the Menu Select button directly below Vmut.
4 Press the Menu Select button directly below Vmut or the
VMut preprogrammed button again to turn the feature off
and you will be able to hear to normal dispatch calls.
Pressing the Menu Select button directly below
VMut programmed button momentarily toggles between Voice
mute on and Voice mute off.
display indicates that the radio is muted to all conventional
dispatch calls and affiliated trunking group calls.
or the
Voice mute on
shown on the

Emergency Operation

The Emergency feature is used to indicate a critical situation.
If the Orange button is preprogrammed to send an emergency
signal, this signal overrides any other communication over the
selected channel.
Your radio supports 5 Emergency modes:
• Emergency Call
• Emergency Alarm
• Emergency Alarm with Call
• Silent Emergency Alarm
• Special Considerations for Emergencies
Check with your dealer or system administrator for more
information on the programming of this feature.
Only one of the Emergency modes above can be assigned to
the preprogrammed Emergency button or the Emergency
To exit emergency at any time, press and hold the
preprogrammed Emergency button for about a second.


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