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Broadcast Call
The Broadcast Group Call (also called Site 
Wide Call) is a high-priority group call from 
the console operator (or dispatcher) to all 
users located at one or more sites. The 
terminals are configured to monitor a 
Broadcast Call, but the users cannot talk 
back. 
The call can be received as normal Broadcast 
Call or Emergency Broadcast Call. 
The Broadcast Call preempts an on-going 
Group Call that has the same (or lower) call 
priority. 
For selecting a talkgroup during a broadcast 
call, see “Selecting a Group” on page 33. For changing folder 
during a broadcast call, see “Selecting a Folder” on page 35.
Ambience Listening (AL)
This feature, if enabled by your Service Provider, allows a 
console operator (or dispatcher) to establish a special call 
with a specific terminal to monitor voice activity in the local 
vicinity. The call is setup without any indication to the 
affected terminal, and any lower priority ongoing voice call or 
packet data transfer may be pre-empted.
After accepting the call, the terminal transmits in a half-
duplex Private Call without any action from or indication to 
the user. The Ambience Listening call shall automatically end 
when the user initiates any voice call and uses the terminal 
normally.
Group In Use
David
Broadcast
Optns 
Emgcy In Use
David
Broadcast
Optns 
6802972C35.book  Page 28  Monday, August 16, 2004  9:22 PM