Automatic Callback

You call an extension and receive busy tone or get no answer.

Press (see display).

Verification tone.

or

Replace the handset or press to finish the procedure.

You are called back if the extension finishes the ongoing call or the next time the extension finishes a new call. You have to answer within eight seconds otherwise the Callback service is cancelled.

Lift the handset when you are called back.

(You can also press the Line or Loudspeaker key to answer in handsfree mode.)