Matrix NAVAN CNX200, System Manual

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668 Matrix NAVAN CNX200 System Manual
DDI Routing
Direct Dial-In (DDI) is a service provided by the ITSPs over SIP Trunks to its customers. These are additional
numbers associated with the main number (Pilot Number).
This is useful in organizations where a PBX is connected and each extension user needs to be assigned a separate
direct number. When there is an incoming call on a specific DDI number, it is routed directly to the extension user
who is assigned the number without the intervention of the Operator.
Before we understand how DDI routing works, we must understand the following terms:
• Pilot Number: It is a unique number assigned by the service provider to a SIP Trunk. The Pilot Number
can be a maximum of 16 digits.
• DDI Numbers: These are additional numbers allotted by the Service Provider. Each extension user can be
assigned a separate DDI number.
To use this feature make sure you have:
• Configured the Pilot Numbers for each SIP Trunk.
• Assigned DDI Numbers to desired extension users.
Let us understand this with the help of an example:
• SIP Trunk1 is connected to the NAVAN.
• The Pilot Number 2630555 is assigned by the service provider along with 50 DDI numbers.
• Extension User1 is assigned the DDI number 2630556 and Extension User2 is assigned the DDI number
2630557. When there is an incoming call on 2630556 it is routed to Extension User1, similarly calls on
2630557 are routed to Extension User2 directly.
• If outgoing calls are made by Extension User1 then the CLI sent to the called party will be the DDI number
assigned to Extension User1, if
Send DDI Number as CLI option is enabled. If not then the Pilot number
will be sent.
To configure,
• Log into Jeeves as System Engineer.
• Click the PBX Settings tab.