Motorola TCR1000 - Emergency Call Features; Hot Microphone Feature; Making Emergency Group Call

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Receiving a TMO Group Call
Unless it is engaged in a call, your TCR1000 will receive the Group
Call. To respond, press and hold PTT.
Receiving a TMO Broadcast Call
The Broadcast Call (also called Site Wide Call) is a high-priority
Group Call from the console operator (or dispatcher) to all users.
The TCR1000s are configured to monitor a Broadcast Call, but
users cannot talk back.
The Broadcast Call pre-empts an on-going Group Call that has the
same (or lower) call priority.
DMO Group Calls
In DMO the TCR1000 can be used without your Service Provider’s
infrastructure.
DMO allows communication with other terminals also operating in
DMO, which are on the same frequency and group as your
TCR1000.
When you start a call, the members of the selected group who have
their units turned on will receive the Group Call.
In DMO the TCR1000 can communicate with the trunking system
(and vice-versa) if the Gateway option is enabled in the TCR1000.
Making a DMO Group Call
1. In DMO, press and hold the PTT button.
2. Wait for the talk permit tone and then speak into the microphone.
Release the PTT button to listen.
Receiving a DMO Group Call
You can receive a DMO Group Call only when your TCR1000 is in
DMO.
Unless it is engaged in a call, your TCR1000 will receive the Group
Call. To respond, press and hold PTT.