Routing inbound ISDN calls

Last Updated : Aug 17, 2020 |

To route incoming Communication Manager ISDN PSTN calls to Avaya Breeze® platform for services, divert all inbound calls to Session Manager using already configured SIP trunks. In this way, the calls route to Session Manager and from there to Avaya Breeze® platform.

Before you begin

To complete this task you must have:

  • An administered Automatic Alternate Routing (AAR) and Feature Access Code (FAC)

  • A SIP trunk group between Communication Manager and Session Manager

  • A route pattern administered to route calls to this SIP trunk group

Procedure

  1. Using the Incoming Call Handling Treatment table, prepend your AAR FAC to the received digits of your ISDN trunk group.

    This will route calls from your ISDN trunk group to AAR treatment.

  2. Use AAR analysis to route ISDN trunk group inbound calls to a route pattern that routes calls to your SIP trunk group.