65
Emer
g
e
nc
y Mode
Hot Microphone Feature
If the Hot Microphone feature was programmed into your
MTM800 by your Service Provider, you can make an
Emergency Group Call without the need to press and hold
the
PTT
.
The following will happen upon entering Emergency mode:
1.
The MTM800 will automatically send an Emergency Alarm
to the dispatcher (if configured by your Service Provider).
2.
A talk permit tone will be heard.
3.
The following typical display will appear:
The microphone will stay open for a time
period determined and programmed by
your Service Provider.
After the Hot Microphone time period
expires, or if you press
PTT
during the Hot
Microphone period,
or if you press
End
:
the
Emgcy Mic Ended
message will be
displayed, and the terminal reverts back to Emergency Mode.
The Hot Microphone feature is now disabled and PTT
operation reverts back to normal.
To resume, press
again.
If talk permit is granted to another member
of the group, an “Emergency call received”
tone will be heard.
If configured by your service provider, your
MTM800 will automatically attempt to get talk permit again
and the
Wait For Mic
message will be displayed.
Receiving an Emergency Group Call
A terminal in TMO receives an Emergency Group Call to the
selected group or associated ATG (Announcement
Talkgroup), or scanned group. If the ATG is the currently
selected group, the terminal will receive the Emergency
During this pending time the MTM800 microphone is not active
until the Emgcy Mic On message is displayed again.
Emgcy Mic On
End
TG4
Optns
Emgcy Mic
Ended
End
Wait For Mic
ID 123
Optns
6815321H01_KOR.book Page 65 Thursday, November 13, 2008 8:06 AM
