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play the following screen, informing you that the call will 
be setup without repeater. The Repeater icon will disap-
pear.
• If you press 
PTT while the repeater is available, you will 
start a DMO call with repeater. The Repeater icon will 
be solid.
Making a DMO Group Call via Gateway and Repeater
1. While in DMO, choose the Gateway and Repeater option as 
described in “Selecting DMO Group Call via Gateway and 
Repeater” on page 45.
2. Place the call for the selected talkgroup: 
• If you press PTT while both gateway and repeater are 
not available, you will start a DMO call without gateway 
and repeater. The Gateway and Repeater icons will dis-
appear.
• If you press PTT while both gateway and repeater are 
available, but the call is rejected by the gateway, a 
repeater call will be attempted. 
> If it is successful your MTM800 will display the mes-
sage Repeater Call and a call via repeater will pro-
ceed. The Gateway icon will disappear.
> If it is not successful your MTM800 will display the 
message MS – MS Call and a terminal to terminal 
call will proceed. The Gateway and Repeater icons 
will disappear.
• If you press PTT while both gateway and repeater are 
available, a gateway call will be attempted. 
> If it is successful your MTM800 will start a DMO call 
with gateway. The Gateway icon will be solid. The 
Repeater icon will disappear.
> If synchronising with a gateway is not successful a 
repeater call will be attempted.
> If it is successful your MTM800 will display the mes-
sage Repeater Call and a repeater call will proceed. 
6815321H01_KOR.book  Page 48  Thursday, November 13, 2008  8:06 AM