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3 To select that talk group and return to normal operation, press the TG SEL switch again 

or press the Select switch. If talk group selection has been disabled on the channel by 
programming, the talk group does not change, “NO LIST” is displayed, and a tone 
sounds.

Unit calls (also called Individual Calls) can be placed to a specific radio on Project 25 
channels If the CALL option switch is programmed. Only the individual ID of the target 
radio is sent (a talk group ID is not sent). The mobiles that can be called are 
preprogrammed in the Unit Call list.

To receive a unit call, the RF channel of the call must be selected or scanned and the 
correct NAC and unit ID must be detected. The ID of the calling radio is then transmitted 
back. To respond to the call, the radio must be programmed with the CALL option switch, 
and have a Unit Call programmed with the ID of the calling mobile.

Place and receive a Unit Call as follows:

1 To transmit a unit call, press the CALL option switch. The alias (tag) of the last Unit 

Call is displayed.

2 If required, rotate the Select switch to display the desired call. The alias and ID of the 

unit calls that have been programmed are alternately displayed.

3 Press and then release the PTT switch. Ringing is then heard and “WAIT” displayed to 

indicate that the mobile is being rung. To disable this ringing but not the call, briefly 
press the PTT switch again. Ringing occurs for 20 seconds or until the call is answered, 
whichever occurs first.

4 When a unit ID call is received, two beeps sound (if tones are enabled), and “Call 

Rcvd” and the alias of the Unit ID are alternately flashed.

5 To respond, select the Unit Call mode by pressing the CALL option key. The following 

operation then occurs:

If a unit call has been programmed with the ID of the calling mobile, it is 
automatically selected. A response can then be made without changing the selected 
channel.

If no Unit Call has been programmed with the ID of the calling mobile, a response 
cannot be made in this mode.

If the call timer times out (set by programming) or the channel is changed before a 
response is made, the unit call mode is exited.