This is from the Feature Description document. I have never done it but remembered seeing it.
Facility Test Calls
Use the Facility Test Calls feature to make test calls to access specific trunks, dual-tone
multifrequency (DTMF) receivers, time slots, and system tones.
Detailed description of Facility Test Calls
This section provides a detailed description of the Facility Test Calls feature.
With the Facility Test Calls feature, you can make test calls to access specific trunks, dual-tone
multifrequency (DTMF) receivers, time slots, and system tones.
You can make test calls from any telephone to test specific trunks. Avaya maintenance
personnel can make test calls from remote locations.
The system supports four types of facility test calls.
? Trunk test for specific tie trunks or central office (CO) trunks.
You cannot test direct inward dialing (DID) trunks with this feature. Your Class of Restriction
(COR) must allow you to use the Facility Access Trunk Test function.
? DTMF receiver test for DTMD receivers that are located on a tone detector or a call
classifier/tone detection circuit pack.
? Time slot test for a specific time slot on the time division multiplex (TDM) buses, or the
out-of-service time slots.
? System tone test for a specific system tone.
For more information, see the Avaya Maintenance Procedures manual.
You can create a feature access code (FAC) for administrators and users to access the Facility
Test Calls feature. You can also assign a feature button for a user to access the feature from the
user telephone.