113
Tones
• Talk Prohibit 
• System busy
• Time-out timer expire
• Called MTM800 not 
available or busy.
Until you release the 
PTT
Call disconnected or 
failed due to network
Once
Wrong number dialled.  No tone
DMO (Direct Mode) 
Entering
 
Once
DMO Exiting Once
Local site trunking —
Entering/Exiting 
Once
Phone ring back 
(sending)
Every three seconds, 
until the called user 
answers or call is 
rejected
Phone busy Every 0.5 seconds
Status message sent to 
the dispatcher or failed.
Twi ce
Incoming Calls
Status message 
acknowledged by the 
dispatcher.
Four times
Your MTM800 received a 
Group Call without 
gateway. (setup only)
Once
High Priority Group Call 
received
Once
Emergency Alarm sent 
or received
Twi ce
Emergency Alarm failed Four times
Emergency Call 
received 
Once
Phone ring, Full-duplex 
Private Call (reception)
According to the Ring Style 
sub-menu setting.
Until you answer or 
the call is rejected
 = High Tone;   = Low Tone
Description Type Repeated
6815321H01_KOR.book  Page 113  Thursday, November 13, 2008  8:06 AM