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Configuration for IP Address Determination
In Program 0905, program all the VoIP trunks into the same group. This trunk group can then be selected in Program 0928 as a
route for a VoIP call.
Program 0905
ARS and F-Route can select the trunk group from the dialed digits for outgoing calls. The trunk group is part of the routing instructions
in Program 2101 (ARS Selection Table) or Program 2904 (F-Route Routing Table). If the trunk group number is between 101 and 126,
it indicates that an attempt should be make to route the call over VoIP. The last 2 digits of this trunk group number are used to select an
entry (table) in Program 0928. The system will choose one trunk from the VoIP trunk group and use the assigned IP address. The dialed
digits are edited by the appropriate dial treatment and stored in the called party number area in the Setup message.
Program 0928 is a table that assigns a VoIP trunk group and an IP address for a VoIP call. This address is the IP address for the
VoIP PCB at the remote location.
Program 0928
As a result of the programming shown in the table above, when trunk group 101 is selected by F-Route or ARS, the system will
choose an outgoing trunk port from trunk group 26 and the IP destination address used will be 192.168.0.1.
How to Determine the Destination IP Address with ARS (Required if Dialing More Than 4 Digits)
If you want to dial the phone number to reach an IP telephone when a Gatekeeper is not available, the ARS feature should be used.
ARS uses the 3-digit or 6-digit table to decide the trunk group to be used. An option is now available to convert the dialed digits to
an IP address.
If the ARS selection number is found by searching the 3 or 6-digit tables and the trunk group number in the Selection Routing
Table (Program 2101) is between 101 to 126, it indicates that the system should attempt to route the call using VoIP. The last 2 dig-
its of this trunk group number are used as the entry in Program 0928 to get the VoIP trunk group number and IP address.
If the VoIP trunk group number is NOT set to zero (0) in Program 0928, the system starts searching for the dialed digits in a section
of the Abbreviated Dial Table within the range defined in Program 0605. If a match is found, the associated entry in Program 0604
is a trunk group number that points to a table in Program 0928, which is used to get the VoIP trunk group and IP address. If no
match is found, the system uses the trunk group number in the Program 0928 table that was chosen by the ARS Routing Table. This
may be a trunk group number for a normal trunk group (without an IP address) or a VoIP trunk group (with an IP address).
VoIP trunk port
1
2
3
4
5
6
7
8
VoIP trunk group
26
Table
VoIP Trunk Group
IP Address
1
26
192.168.0.1
2
26
192.168.0.2
3
26
192.168.0.3
