Motorola 4580 User Manual

Page of 92
Advanced Features
English
40
If your radio is set to Silent with Voice, it will not display any 
audio or visual indicators during Emergency mode, but allow 
incoming calls to sound through the radio’s speaker. The 
indicators will only appear once you press the PTT button to 
initiate, or respond to, the call.
Sending an Emergency Alarm with Voice to 
Follow 
This feature allows you to send an Emergency Alarm to a group 
of radios. Your radio’s microphone is automatically activated, 
allowing you to communicate with the group of radios without 
pressing the PTT button. 
This activated microphone state is also known as “hot mic”.
If you press the PTT button during the programmed hot mic 
transmission period, the radio ignores the PTT press and 
remains in Emergency mode.
NOTE: If you press the PTT button during hot mic, and 
continue to press it after the hot mic duration expires, 
the radio continues to transmit until you release the 
PTT button. 
Procedure: 
1
Press the programmed Emergency On button or the 
Emergency footswitch.
2
The display shows Sending Alarm. The green LED lights 
up and the Emergency icon is displayed.
3
Once the display shows Emergency Alarm Successful, 
speak clearly into the microphone. When hot mic has been 
enabled, the radio automatically transmits without a PTT 
press until the hot mic duration expires.
4
While transmitting, the green LED lights up and the 
Emergency icon appears on the display.
5
Once the hot mic duration expires, the radio automatically 
stops transmittingTo transmit again, press the PTT button.
If your radio is set to Silent, it will not display any audio or visual 
indicators during Emergency mode, or allow any received calls 
to sound through the radio’s speaker, until the programmed hot 
mic transmission period is over, and you press the PTT button.
If your radio is set to Silent with Voice, it will not display any 
audio or visual indicators during Emergency mode when you 
are making the call with hot mic, but allow sound through the 
radio’s speaker when the target radio responds after the 
programmed hot mic transmission period is over. The indicators 
will only appear when you press the PTT button.
NOTE: If the Emergency Alarm request fails, the radio does 
not retry to send the request, and enters the hot mic 
state directly.
NAG_6880309T15.book  Page 40  Tuesday, March 9, 2010  11:47 AM