744 Matrix PRASAR UCS System Manual
• enable Closed User Group (CUG) in the Class of Service assigned to the extension users.
You need to make sure the following parameters of the CUG table are configured as mentioned below:
• Index: Maximum 250 different routes (001-250) can be configured.
• Route Code: Generally route code will be a truncated number of the extension numbers. For example in
the figure given above, route code for System-B can be defined as ‘3’ and that for System-C can be
defined as ‘4’.
Route code could be of maximum sixteen digits. Valid Digits: 0 to 9, *, #, +, .(Dot).
If System-B were having extension numbers from 3100 to 3199 and System-C were having extension
numbers from 3200 to 3299 then route code for System-B can be defined as ‘31’ and that for System-C
can be defined as ‘32’. If System-B were having extension numbers from 301 to 399 and 401 to 499 then
two route codes can be defined for System-B viz. ‘3’ and ‘4’. Likewise for System-C.
• OG Trunk Bundle Group: An OG Trunk Bundle Group (OGTBG) is assigned to each route code.
Whenever a call is to be made on that route, a free trunk from the OGTBG is selected and the extension
number is dialed on it. The same logic of Rotation On/Off for trunk selection from the OGTBG is used. If
rotation is OFF then always the first trunk in the OGTBG is selected. If it is busy then the next trunk in the
group is selected. This helps to select an alternate route. Whereas if Rotation is ON then the trunks in the
OGTBG are selected in round robin fashion.
• Strip Digit Count: For this application, configure the parameter as 0. This parameter is relevant when you
have the same extension numbers in each system.
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