User's Guide

Table Of Contents
Note: Power loss and power down are different
activities, power down occurs when the user
intentionally powers off the radio, power loss is when
the battery dies or is removed from the unit.
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 is set more than
the maximum allowed characters is an invalid name.
Logging in via the Two-Factor Authentication
1 Perform one of the following actions:
Press the preprogrammed User Login button.
or to User, and press the Menu Select
button directly below User.
The display shows the User Login screen.
2 Perform one of the following actions:
or 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 the Menu Select button
directly below Ok to submit.
or to scroll through the list of predefined
usernames. Press the Menu Select button
directly below Sel
to select the predefined
username.
Press and hold
or to scroll through the
list of predefined usernames at a fast scroll
rate. Press the Menu Select button directly
below Sel to select the predefined username.
If the selected predefined username has more
than the maximum allowed characters, or an
Advanced Features
93
English