Avaya Communication Manager Administrator's Manual page 1375

Ringback Queuing is automatic for a single-line telephone. After dialing is complete, the user hears
confirmation tone if the queue is available. No action is required.
T he system will queue as many calls as allowed based on the Queue Length field on the each trunk
group screen. The system checks the busy/idle status of the trunk group just once. If all trunks are busy,
the call queues, even if a trunk has become available by the time the caller has completed dialing. This
occasionally results in the caller being called back immediately after receiving confirmation tone and
going on-hook.
Considerations
•
The system cancels an automatic callback request for any of the following reasons:
— The called party is not available within 30 minutes.
— The calling party does not answer the callback call within the administered interval (2–9
ringing cycles set in the
Feature-Related System Parameters screen).
— The calling party decides not to wait and presses the same automatic callback button a
second time (multi-appearance telephone) or dials the automatic callback cancellation
code (single-line telephone).
•
automatic callback is administered to individual telephones by their COS and cannot be assigned
to the attendant(s). Multi-appearance telephones must have an automatic callback button to
activate the feature.
•
automatic callback works differently depending on if the called party was busy or did not answer
the call. For a busy call, automatic callback takes place as soon as the called party hangs up. If the
called party did not answer, the telephone must be used for another call and then hung up before
automatic callback is activated.
NOTE:
If the automatic callback originator has all line appearances occupied when the automatic
callback call comes in, the user will hear priority ringing once, and the automatic callback
lamp will blink. However, if the user presses the automatic callback button to answer the
automatic callback call, one of the other calls will drop.
Interactions
•
Attendant Call Waiting and Call Waiting Termination
If a user activates automatic callback to or from a single-line telephone, Call Waiting Termination
is denied.
•
Attendant Intrusion
Attendant Intrusion does not work if a user has activated automatic callback.
•
Bridged Call Appearance
Users cannot activate automatic callback from a bridged call appearance. If a user activates
automatic callback from a primary extension number, the return-call notification rings at all
bridged call appearances.
•
Busy Verification
If a telephone has activated automatic callback, you cannot perform Busy Verification of that
telephone.
Administrator's Guide for Avaya Communication Manager
November 2003
Automatic Callback-No Answer Timeout Interval
Feature Reference
Automatic callback
field on the
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