54
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 51.
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 MTM800E 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 MTM800E 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 MTM800E 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 MTM800E will display the mes-
sage Repeater Call and a repeater call will proceed. 
The Gateway icon will disappear and the Repeater 
icons will be solid.
> If it is not successful your MTM800E will display the 
message MS-MS Call and a terminal to terminal call 
will proceed. The Gateway and Repeater icons will 
disappear.