User's Manual

DP770 Instruction Manual 23/27
Emergency alarm with call
Emergency alarm with voice to follow
And every mode has the following types:
Alarm only—After enabled the emergency alarm, the alarm sends out from the radio, but the
Monitor Center could not receive any alarm signal.
Regular—the radio sends out the emergency alarm, with the sound and the LED indication.
Silent—the radio sends out the emergency alarm, without the sound and the LED indication.
Even when the radio receives the answer, its speaker is mute until the PTT key is pressed.
Silent with voice—the radio sends out the emergency alarm and is able to receive an
incoming call, without any audio or visual indicators, until you press the PTT key to initiate, or
respond to the call.
The above type can be set by CPS, and only one type can be chosen.
(1) Receiving an emergency alarm
If enabled “Emergency Alarm Indication”, your radio can receive the emergency alarm, or
otherwise, the alarm is neglected.
To receive the emergency alarm, the radio must be set as the group member (add your radio
into the group call list).
a) When receive the emergency alarm, the icon
displays on the LCD screen.
b) The caller’s alias/ID, the icon
and the emergency alarm type icon display on the
LCD. The radio sends out the alarm alert tone periodically, and the RED LED indicator
flashes quickly.
c) If “Emergency Alarm Reply” (channel parameter) is enabled, the radio will automatically
reply the emergency alarm.
Note: Under the emergency alarm, the radio can receive all the calls, including private call,
group call and short message. But the LCD only displays the call type after exit the
emergency alarm mode.
(2) Responding an emergency alarm
When the radio receives the emergency alarm:
a) Press any key to exit the Emergency Alarm Indication screen.
b) Keep your mouth 3~6 inches away from the microphone.
c) Press the PTT key to answer the caller and the RED LED indicator lights on. The radio still
stays in emergency alarm mode.