Advanced Features
English
92
Two-Factor Authentication
Two-Factor Authentication is an extension of existing ARS and 
TMS operation. This feature allows you to authenticate yourself 
with a username, unit ID, password and passcode. 
The purpose of this feature is to allow the sender of a text 
message to address a specific user of the radio, so the 
message is delivered to the user, not to the radio which may 
have any user using it at the time. 
Secondly, this feature supports query authentication 
requirements so the query service knows which user originated 
a query. 
You can still send text messages without logging in as a user. 
The user login feature only enables the recipient of your 
message to identify you as the sender by assigning a username 
to your message.
Note: A predefined username that’s set more than the 
maximum allowed characters is an invalid name. 
Logging into Two-Factor Authentication
Procedure:
Press the preprogrammed User Login button and proceed to 
Step 3.
OR
Follow the procedure below.
1 < or > to User.
2 Press the Menu Select button directly below User. 
3 The display shows the User Login screen.
4 U or D to {ID Entry} and press the Menu Select button 
directly below Edit. A blinking cursor appears.
Use the keypad to type or edit a username.
Press 
< to move one space to the left. 
Press > to move one space to the right.
Press the Menu Select button directly below Del to delete 
any unwanted characters.
Press 
* to add a space.
Press 0 to toggle between mixed case mode, uppercase 
mode, and lowercase mode.
Press 
# to toggle between numeric and letter mode.
Press the Menu Select button directly below Ok to submit.
OR
U or D to scroll through the list of predefined usernames.
Press the Menu Select button directly below Sel to select 
the predefined username.
OR