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• Fallback Mode 
– it includes only voice communication. It 
can be cleared manually
• Test Call-Out 
– dispatcher has the ability to test this 
feature. Radio is generating the tone with “Call-Out Test” 
on the display. Only one softkey is enabled “Test OK” to 
confirm and to clear the test.
Interactions when the user is in other mode:
•TXI Mode 
– users can read the message but they can not 
respond to it. They have an option to leave the TXI Mode 
by pressing soft key or reject the Call-Out message.
• DMO Mode 
– Call-Out is not supported.
• Emergency Mode 
– all the Call-out alert are ignored.
Call-Out service phases
• Alerting phase 
– user receives a Call-Out message. 
The alarm tone indicates the message text is displayed 
and under it there are three options for the user to pick: 
Accept, Reject or Menu. If the user will accept the alert no 
other service from this point can interrupt. Menu key gives 
more choices (display on the right).
Fallback is only possible when Radio is in Local Site Trunking. 
The user can stop the alert tone by pressing PTT or any of the soft 
keys.
Severity-1
Test Group
Car accident
Call-Out 1
Accept
Reject
Accept
Standby
Reject
Messages
Exit
Select
Back
Call-Out 1