Matrix PRASAR UCS - Page 814

Matrix PRASAR UCS System Manual 805
Handling Outgoing Calls
Reverse DDI is when you want the DDI numbers assigned to the extension users to be displayed as the CLI to the
called party. For this you must configure the DDI Routing Table and the Outgoing Reference Table.
When an outgoing call is made by the extension user, the DDI numbers will be sent as CLI to the called parties only
if, the service provider supports this facility. If this facility is not supported by the service provider and if PRASAR
UCS sends the DDI Number, this number will be swapped by with the Pilot number by the service provider and then
the call will be routed further.
Pre-requisites to route outgoing calls as per the DDI logic,
• Assign an Outgoing Reference ID to the SIP Trunk. This Outgoing Reference ID acts as a link between the
port settings and the Outgoing Reference Table.
• In the Outgoing Reference Table against the same OG Reference ID, configure the DDI Routing Ref. ID
and the Pilot Number as per your requirement.
• To fetch the DDI number the system refers to the DDI Routing Ref. ID configured in the Outgoing
Reference Table. As per this ID the system checks the DDI Routing Table. The DDI Routing Ref. ID acts as
a link between the Outgoing Reference Table and the DDI Routing Table.
When an outgoing call is made using the SIP Trunk,
• The extensions user dials an external number. The system provided the SIP Trunk to out-dial the number.
• As per the time zone, the system checks for the Outgoing (OG) Reference ID assigned to the SIP Trunk.
• If the OG Reference ID has been configured, the system then hunts for the same ID in the Outgoing
Reference Table.
If a match is found, the system verifies the trunks assigned to the user for making an outgoing call.
• The system the checks the corresponding DDI Routing Reference ID. The DDI Routing Reference ID acts
as a link between the Outgoing Reference Table and the DDI Routing Table.
• The system hunts for the same DDI Routing Reference ID in the DDI Routing Table. From this table the
system fetches the DDI number assigned to the extension user. You can configure as many as 224 DDI
Reference ID’s with different DDI numbers.
• When a match is found in the DDI Routing Table, the system sends the MSN Number + DDI number of the
extension in the calling party field to the called party.
• If no match is found in the DDI table, the ISDN Number, that is the MSN Number + the first DDI number is
sent in the calling party field to called party.
Configuring using Jeeves
To route incoming calls as per the DDI logic you must configure the following:
• Assign the Incoming Reference ID on the respective trunk.
• Incoming Reference Table
• DDI Routing Table