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Example for prefixes configuration (see screenshots):
1. In general you have to make a group for each operator that you use, for this example we use
3 operators that each one of them have one or a few prefixes.
First operator: AAA, uses prefixes 092, 093.
Second operator: BBB, use s prefixes 094, 096.
Third operator: CCC, uses prefix 098.
2. You will have to make 3 groups and assi gn ports that have the same prefixes , to each group.
Group 1 - Port 1-10 will have SIM's from operator AAA (prefixes: 092, 093).
Group 2 - Ports 11-20 will have SIM's from operator BBB (prefixes: 094, 096).
Group 3 - Ports 21-32 will have SIM's from operator CCC (prefixes: 098).
3. When a call is made, the prefix is checked and the call is directed to the group with the ports
that have the SIM's with this prefix.
How to configure:
1. In the PRI pc software press the "B -CH/Port" icon, in allocation mode enab le the "By
Prefixes" box.
2. Next assign the 32 ports to their groups as explained above in point 6.
3. In the field "Maximum prefix length (1 -10)", enter 3 - because the prefixes that you check
have only 3 digits (092, 094 .....). In the field "Waiting time f or free port (0-25 sec)", enter
the number of seconds to be waited when "High Priority" and "Low Priority" groups are
busy with calls before the call is directed again to those groups; explained above in point 8.
Then press "Write Data", to save the change s that you have made.
4. Press the "Prefixes" tab (on the left side), enter the prefixes in the "Prefix" column (092,
093…) and the group number in the "High Priority" column (1, 2 or 3), then press "Write
Data".
5. If all the ports of one group are busy with calls and you do not want to lose other calls that
are coming to the same operator, you can enter in the column "Low Priority" another group
number and those calls will be directed to the ports in the "Low Priority" group ; the use of
"Low Priority" group is optional.