Table 11: Emergency Operation Dependencies; Invisible Emergency - Motorola MTP8500Ex User Manual

3.5.9

Invisible Emergency

It is possible for the service provider to disable visual and audible indications when performing
Emergency Operation on the radio, known as Invisible Emergency. Invisible Emergency provides an
extra layer of safety when using Emergency Operation in a critical situation, for example during a direct
attack on the user.
3.5.10
Emergency Alert
This feature allows the radio to send emergency alerts to other radios within its DMO coverage by
pressing the Emergency button. Even in TMO mode, the radio monitors a special DMO emergency
frequency for possible emergency alerts, and responds to them by automatically joining the emergency
call.
To initiate the emergency alert, the radio must be in MS-MS DMO mode or out of coverage in TMO
mode. The alert is not sent to the dispatch console.
To receive the emergency alert, the radio must be in DMO or TMO, within RF range of the initiating
radio, and must not be in a call. When the radio receives the emergency alert, it joins the call
automatically.
The following table illustrates the dependencies between the current radio mode and the type of
emergency operation:

Table 11: Emergency Operation Dependencies

DMO, MS-MS, idle
DMO, Repeater, idle
DMO, Gateway, idle
DMO, in call
TMO, no coverage
TMO, in coverage, idle
TMO, in coverage, in call
Network Monitor, MS-MS
Network Monitor, Repeater
Gateway operation, in cover-
age
Repeater operation
3.5.11
Emergency Mode by Dialing
This feature allows you to trigger Emergency Mode by dialing a predefined number. It initiates the
same Emergency services as you would use the Emergency button. Your radio can store up to eight
Emergency numbers.
NOTICE: If this Emergency Mode was triggered by Emergency number (not by Emergency
button), you can press the End key to exit the Emergency Mode.
Send Feedback
Initiate Emergency
Emergency Alert
Standard DMO Emergency
Standard DMO Emergency
Per communication mode
Emergency Alert
Standard TMO Emergency
Standard TMO Emergency
Emergency Alert
Standard DMO Emergency
Standard TMO Emergency
Standard DMO Emergency
MN002033A01–AC (en-US)
Chapter 3: Modes
Emergency Alert Received
(Yes / No)
Yes
Yes
Yes
No
Yes
Yes
No
No
No
No
No
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