User Manual

a TMO — For simplex calls, press and release the PTT button. You hear a ringing tone.
Otherwise, press and hold the PTT button. Wait for the talk permit tone before talking, and
release the PTT button to listen. For duplex calls, press and release the SEND key. You hear
a ringing tone.
b DMO — Only simplex calls are available. Press and hold the PTT button. Wait for the talk
permit tone before talking, and release the PTT button to listen.
4 To end the call, press the END key.
NOTICE: If you are using the fist microphone or the telephone style handset, replace it
firmly on it's clip or holder when done.
Private Call With Presence Check
This feature allows you to see if the calling party is available in DMO. When this feature is enabled, you
can only initiate a Private Call if the called radio is present on the same channel and responds with a
presence check acknowledgement.
Otherwise your radio displays Party Not Available.
DMO Private Priority Call
The service provider may assign Pre-emptive Priority to outgoing DMO Private Calls. If this is the case,
DMO Private Calls from this radio preempt any ongoing calls (with the exception of emergency calls or
ongoing Pre-emptive Priority Private Calls) on the receiving radio, which then displays Call-
preempted.
Talkgroup for Individual Calls
Talkgroup for Individual Calls is a talkgroup that operates on a separate frequency allocated for
individual (private) calls only. Using this talkgroup optimizes frequency resources and helps not to
block other talkgroups. The only supported call types are: private calls and emergency calls (both
private and group). Use this talkgroup each time you need to make a private call.
When you select a Talkgroup for Individual Calls, your radio is not able to receive or initiate any group
or broadcast calls with priority lower than Emergency.
When you have selected a Talkgroup for Individual Calls and press the PTT button to start a Group
Call, the radio:
• Rejects the call
• Plays a tone
• Displays the Individual Calls Only message
Communication through Repeaters
Radios that are out of range and cannot communicate directly one with another in DMO Mode can do it
through the repeater. The repeater is a radio that repeats all communication on a chosen channel, and
as a result increases radios’ DMO range.
Chapter 3: Modes
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