ASTRO XTS 2500/XTS 2500I Model III 85
ARS User Login and Text Messaging 
Features
Automatic Registration Service (ARS)
The Automatic Registration Service feature provides an automated 
data application registration for the radio. When you turn on the radio, 
the device automatically registers with the server. Data applications 
within the fixed network can determine the presence of a device on 
the system and send data to the device. For example: Text 
Messaging Service (TMS).
The Automatic Registration Service for the radio consists of 2 modes: 
• ARS Server Mode (default mode)
• ARS Non Server Mode
Note: The default ARS mode can be changed by a qualified 
radio technician using the radio’s programming software.
Selecting or Changing ARS Mode
Consult a qualified radio technician for the right choice between the 
following methods:
Method 1: Use the Preprogrammed 16-Position Select Knob
After the zone you want is 
displayed, turn the  
16-Position Select knob to 
the desired mode.
Select 
Mode
94C06.book  Page 85  Wednesday, June 23, 2010  11:41 AM