ASTRO XTS 2500/XTS 2500I Model III 43
Common Radio Features
Send an Emergency Call
An Emergency Call will send a type of dispatch giving your radio 
priority access to channels.
The radio operates in the normal dispatch manner while in 
Emergency Call, except, if enabled, it will return to one of the 
following:
2 When you receive the 
dispatcher’s 
acknowledgment, you see 
ACK RECEIVED, four tones 
sound, the alarm ends, and 
the radio exits the 
emergency mode. 
 
If no acknowledgement is 
received, you see NO 
ACKNOWLDG, the alarm ends, 
and the radio exits the 
emergency mode.
• Four tones
• Alarm ends
• Radio exits emergency
Note: For Emergency Alarm with Emergency Call: The radio 
enters the Emergency Call state either after it receives the 
dispatcher’s acknowledgment, or if you press the PTT button 
while in Emergency Alarm. Go to step 2 below: “Send an 
Emergency Call.”
Using this operation: means you will talk:
1. Tactical/Non-Revert on the channel you selected 
before you entered the 
emergency state.
2. Non-Tactical/Revert on a preprogrammed emergency 
channel. The emergency alarm is 
sent to this same channel.
ACK RECEIVED
NO ACKNOWLDG
94C06.book  Page 43  Wednesday, June 23, 2010  11:41 AM