Configure DID Numbers on a Trunk

This topic describes when and how to configure DID numbers on a trunk.

Background information

DID numbers are usually configured on inbound routes to distinguish inbound calls. For more information, see Route Inbound Calls based on DID Numbers.

In the following scenarios, you need to configure DID numbers on a trunk:

  • For SIP Register Trunk

    For a SIP Register Trunk, if ITSP provides DID numbers that are different from SIP authentication name, you need to add the provided DID numbers on the trunk, or inbound calls through this trunk would fail.

  • Identify inbound calls

    To identify which DID number is dialed, you can bind each DID number with a DID name.

Prerequisites

Purchase DID numbers from the trunk provider.

Add a DID number

  1. Log in to PBX web portal, go to Extension and Trunk > Trunk, edit the desired trunk.
  2. Click DIDs/DDIs tab.
  3. In the pop-up window, click Add and configure the DID.
    • DID/DDI: Enter the provided DID number.
    • DID/DDI Name: Bind a name with the DID number.

      When the DID number is dialed, the name will be displayed on the called party's device.

  4. Click Save and Apply.

Delete DID numbers

  1. Log in to PBX web portal, go to Extension and Trunk > Trunk, edit the desired trunk.
  2. Click DIDs/DDIs tab.
  3. On the DIDs/DDIs page, click to delete a DID number.
  4. To bulk delete DID numbers, select the checkboxes of DID numbers, click Delete.
  5. Click Save.