User`s guide
ASTRO XTL 5000 Digital Mobile Radio with W4, W5, W7, and W9 77
Trunking Operation
4 Choose one of the following conditions that applies to your 
current call:
• If the receiving unit answers, identify yourself and begin your 
Private Conversation.
• If, after a programmable time period, you are not connected, 
the display shows NO ACK and a momentary, low-pitched 
tone sounds.
Try again, or press   or   button to return 
to normal operation.
• If you are out of the system’s range, a low-pitched tone 
sounds.
Try again, or press   or   button to return 
to normal operation.
• If the system is busy when you attempt to make a call, the 
radio you are calling hears a telephone-type busy tone. 
When a channel becomes available, the called radio 
receives a call back and automatically keys up for three 
seconds so that conversation can begin.
5 To return to normal operation, press   or  .
Note: If you do not press   or   button to hang 
up, your unit will remain in the Private Conversation state 
with the other unit. You will miss all subfleet traffic and 
incoming phone calls.
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