User's Manual

DP770 Instruction Manual 16/27
d. Press the PTT key to answer the call and the RED LED indicator lights on;
e. Wait for the Talk Permit Tone to finish (if enabled*) and speak to the MIC;
f. Release the PTT key to receive the call;
g. After the preset time (call hang time) is over, the call is over.
(3) Receiving an all call
All call is a call from an individual radio to every radio on the channel. It is used to make
important announcements requiring the user’s full attention.
When the radio receives the all call:
a. GREEN LED indicator lights on;
b. The private call icon
, the caller’s alias or ID and the incoming call icon display on
the LCD screen;
c. When the all call is finished, the radio returns to the previous screen.
Note:
1. The receiver cannot answer all call. During receiving, if the receiver switches to the other
channel, the radio stops receiving the call.
2. During all call, all the programmable keys are unavailable until the call is over.
5) Making a call
There are four means to select a channel to send ID or group ID:
Rotate the channel knob;
Press the programmable keys;
Through the contact list (refer to Contact Menu);
Manual Dial from the keyboard
(1) Using the channel knob to make a call
In order to make a group call, you must set your radio as the group member (add your radio
into the group call list).
1. Rotate the channel knob to select the channel which is preset the target alias/ID (the call
type depends on the contact)
2. Keep your mouth 3~6 inches away from the microphone;
3. Press the PTT key to make a call and the RED LED indicator lights on. The caller’s
alias/ID and the call type icon (Private call:
, Group call: or All call: ) display on the
LCD screen.