Advanced Features
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Text Messaging Service (TMS)
This features allows you to quickly send and receive messages 
and run database queries directly from your radios.
The types of text messages available:
• A new text message (free form message).
• A predefined message (quick text message).
• An edited quick text message.
• A query (ASTRO 25 Advanced Messaging Solution).
Note: Query is only supported withing ASTRO 25 Advanced 
Messaging Solution. See Two-Factor Authentication 
on page 92 and ASTRO 25 Advanced Messaging 
Solution on page 91 for details.
The main menu consists of the following options:
• Inbox
• Compose
• Drafts
• Sent
Note: See Status Icons on page 20 for more information on 
the TMS icons and TMS Menu Options on page 25 for 
more information on each menu option.
Accessing the Messaging Features
Note: The radio automatically exits the feature, if the feature 
inactivity timer is enabled, when the radio is left idle 
and the timer expires. You will hear the Menu Inactive 
Exit Tone upon feature exit.
Press the Menu Select button directly below Back at 
any time to return to the previous screen.
Procedure:
Press the preprogrammed Data Feature button or the TMS 
Feature button to access the TMS feature screen.
OR
Press and hold the preprogrammed Data Feature button or the 
TMS Feature button to access the Inbox.
OR
Follow the procedure below.
1 < or > to TMS.
2 Press the Menu Select button directly below TMS to access 
the TMS feature screen.
3 U or D to scroll through the main menu options.