E F Johnson Company 2425M70 Benutzerhandbuch

7-4

Calls are received on only the talkgroup and/or announcement group programmed for the 
selected channel (with scanning disabled). When the selected channel is programmed with 
both Talk and Announcement groups, only the Talk and Announcement group IDs are 
detected. Other IDs in the Announcement group are detected only if no talkgroup is 
programmed.

When a group call is received, the alias of the selected channel is displayed. The radio can 
be programmed so that the following are also displayed for 0.5-7.0 seconds or 
continuously during the call.

PTT ID - The unit ID of the mobile placing the call is displayed.

TG on Rx - The alias of the talkgroup on which the call is being received is displayed 
(typically for use by technicians).

User Group ID - If the group ID of the call being received is included in a 
preprogrammed User Group ID list, the alias programmed in that list for that group is 
displayed.

Received Key ID - The Key ID (or the alias, if programmed) of the key used to decode 
the call is displayed.

Private calls allow calls to be placed to a specific radio unit. Either the Enhanced Private 
Conversation™ or standard Private Conversation modes may be programmed depending 
on the capabilities of the radio system. One difference between these call types is that the 
Enhanced type provides an indication that the called mobile is not on the air and the 
standard version does not. Operation in each of these modes is described in the following 
information.

The Private Call option switch is required to place these calls, and either that switch or the 
Call Response switch is required to receive them. The feature is also selectable via menu 
parameter. Private calls are programmed to operate in one of the following modes:

• Disabled

• Answer-only capability

• List only - Unit IDs can be selected from a preprogrammed list only (direct entry as 

follows is not allowed)