System information

System Administration Guide

17 Direct Inward Dialing (DID)

Direct inward dialing (DID) is a service offered by a local telephone company that provides a block of phone

numbers for calling into a PBX without requiring a physical line for each number. In cooperation with the

PBX, each number is mapped to a PBX extension. Each PBX user has a unique outside number that can be

used to ring the user’s phone directly, rather than directing the incoming call to an Auto Attendant.

Configuring the Allworx

server for DID service involves 3 steps:

1. Creating a DID block.

2. Configure the call routing plan for the DID block.

3. Create a DID line for each DID trunk line plugged into the server.

Note: Analog DID support is only included on the Allworx 10x product. However DID support is available for

Digital Lines and for SIP Proxy (ITSP) based services and they are configured in a similar manner as

described here.

17.1 Create a DID Block

Click on the New DID Block link on the Direct Inward Dial Blocks section of the Phone / Outside Lines page.

Enter the Starting Phone Number and Total number of phone numbers in the DID Block as specified by the

telephone company. Unless you already have an existing DID Routing Plan that you want use, leave it as the

default to make a new routing plan.

17.2 Configure a Call Routing Plan for the DID Block

After the DID block is created, look at the Direct Inward Dial Blocks section on the Phone System / Outside

Lines page to see the routing plan associated with the block.

300 Main Street • East Rochester, NY 14445 • Toll Free 1-866-ALLWORX • 585-421-3850 • www.allworx.com

Revised: March 28, 2007

Page 76