User's Manual

DP770 Instruction Manual 24/27
d) Wait the Talk Permit Tone to finish (if enabled *) and speak to MIC.
e) Release the PTT key to receive. If the caller responses the call, the GREEN LED indicator
lights on, and the icon indicating the transmitting radio’s type, alias or ID display on the LCD.
f) After the call is over, long press the programmed “Emergency Alarm” key to delete the
Emergency Alarm Indication and then exit this mode.
g) The radio returns to the standby screen.
(3) Sending an emergency alarm
This function is used to send an emergency alarm without the voice.
a) Press the key programmed as “Emergency Alarm” to activate this mode, and the LCD
displays
.
b) The LCD also displays alarm group alias/ID, the emergency alarm icon
and this
icon
.
c) When the alarm is received, the LCD indicates that “Emergency Alarm Successful”.
Or if not received, and the retry time is over, the LCD indicates that “Emergency Alarm
Failed”.
d) The radio exits Emergency Alarm mode, and return to the standby screen.
If your radio sets as Silent and Silent with voice, there will be no sound or sign in Emergency
Alarm mode.
(4) Sending an emergency alarm with call
This function allows you to send an emergency alarm to another radio. When this radio
receives the call, the communication can be started in the emergency alarm channel.
a) Press the key programmed as “Emergency Alarm” to activate this mode, and the LCD
displays
.
b) The LCD also displays alarm group alias/ID, the emergency alarm icon
and this
icon
.
c) When the alarm is received, the LCD indicates that “Emergency Alarm Successful”.
d) Keep your mouth 3~6 inches away from the microphone.
e) Press the PTT key to make a call and the RED LED indicator lights on. The group call icon
displays on the LCD.
f) Wait for the Talk Permit Tone to finish（if enabled*）and speak to MIC.
g) Release the PTT key.
h) If the Channel Free Indication feature is enabled, you can hear a short alert tone when release