Hytera MT680 Tetra - TMO Emergency Call; DMO Individual Call

Owner’s Manual
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Note
You need to set the PABX/PSTN gateway prior to initiating a telephone call.
8.1.4 Emergency Call
Initiating an Emergency Call
Long press the Emergency key and you can initiate an emergency call to the default group.
There are two levels for emergency call: emergency priority and pre-emptive priority 3, which can be
programmed by your dealer. The emergency priority is endowed with the higher privilege; thus a call with
such priority can break any other call with pre-emptive priority 3, as well as calls with lower priorities.
Note
The target of an emergency call can be an individual or a group (programmed by your dealer). And
generally the dealer is recommended to use the default group.
Answering an Emergency Call
The emergency call is always received automatically. During an emergency call, the initiating party can
talk with no need to use any key. If another member needs to talk, he/she should hold down PTT only
after the talking party stops talking and releases its PTT.
Hanging up an Emergency Call
Press to terminate the emergency call.
8.2 DMO
8.2.1
Individual Call
In DMO mode, an individual call can be initiated only as a half-duplex call.
Initiating an Individual Call
In the home screen, directly input the number you want to call through the keypad, or press Function/P1
key or OK key to enter the “PhoneBook” or “Call Log” submenu, and select a contact. Then press PTT to
initiate the call.