Administering trunks for LDN example

Last Updated : Sep 26, 2023 |

About this task

Listed directory numbers (LDN) are the telephone numbers given for an organization in public telephone directories. You can administer Communication Manager so that calls to different listed directory numbers go to the same attendant group. How you administer your system for LDN calls depends on whether the calls are coming in over DID and tie trunks or over CO and FX trunks.

As an example, let us say that one attendant group answers calls for 3 different businesses, each with its own listed directory number:

Procedure

  1. Company A — 855-2020
  2. Company B — 855-1000
  3. Company C — 855-1111

    DID trunks and some tie trunks transmit part or all of the dialed digit string to Communication Manager. If you want these calls to different numbers to go to one attendant group, you must identify those numbers for Communication Manager on the Listed Directory Numbers screen.

    We will take the 3 businesses listed above as an example. We will assume your server receives 4 digits from the central office on a DID trunk group and that you’re not using Tenant Partitioning. To make these calls to different listed directory numbers terminate to your attendant group:

    1. Enter change listed-directory-numbers.

    2. In the Ext 1 field, enter 2020.

      This is the LDN for Company A.

    3. In the Name field, enter Company A.

      The system displays the name on the console display so the attendant knows which business the call is for and how to answer it.

    4. Repeat steps 2 and 3 for the other two businesses.

      You can enter up to 20 different listed directory numbers on this screen.

    5. Select Enter to save your changes.

    To make LDN calls over a CO or FX trunk group terminate to an attendant group, you must type attd in the Incoming Destination field on the Trunk Group screen for that group.

    When you use the Listed Directory Number screen to assign some extensions to the attendant group, or when you enter attd in the Incoming Destination field on the Trunk Group screen for CO or FX trunks, Communication Manager treats these calls as LDN calls.

    See Listed Directory Numbers in Avaya Aura® Communication Manager Screen Reference for detailed information about this feature.