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Selecting DMO Group Call MS to MS
To change from gateway or repeater mode to MS – MS mode 
(DMO terminal to terminal call):
1. Press Optns, scroll to 3 Config, and press Ok.
2. Scroll to 1 MS – MS and press Ok. The 
following message to be displayed for a 
few seconds: MS – MS Will Be Used.
Selecting DMO Group Call via Gateway
While in DMO, proceed as follows to choose a gateway to set 
up a call via Gateway for the selected talkgroup:
1. Press Optns, scroll to 3 Config, and press Ok. 
2. Scroll to 2 Gateway and press Ok.
3. The display shows the last gateway selection method. Use 
the navigation key to scroll to your selection and press Ok:
Automatic — the MTM800 will use the 
first available gateway for that talkgroup. 
The Gateway icon will blink upon 
selecting that option.
Specific — the MTM800 will use only the gateway with the 
specified Gateway address for that talkgroup. 
Upon selecting “Specific”, you will see one of the following 
displays:
• The selected gateway address (e.g.: 
1022), pre-programmed by your Serv-
ice Provider or previously entered by 
yourself via the keypad. Press Ok to 
use the current address, or enter a new address via the 
keypad, and press Ok. The Gateway icon will blink upon 
selecting the gateway.
2 Gateway
1 MS – MS
4 GW + Rep
Back
Ok
1 MS – MS
2 Gateway
3 Repeater
Back
Ok
1 Automatic
2 Specific
OkBack
GW No: 1022
Will Be Used
6815321H01_KOR.book  Page 44  Thursday, November 13, 2008  8:06 AM