You may automatically dial the last incoming call, whether or not the call was answered. This operates only on the last received call.

To enable:

      1. Lift the receiver and wait for dial tone.
      2. Dial *69. You will hear an announcement such as, “The last incoming call was received on 505-736-1234. to activate, press 1.”
      3. Press 1 to call back. The last incoming call is automatically dialed.
      4. If the called number is busy or no one answers, repeat steps 1 to 3.

To disable: From your standpoint, this feature is used on a per call basis. However, it is possible to cancel a Last Call Return call once it is in process:

      1. Lift the receiver and wait for dial tone.
      2. Dial *89. You will hear an announcement that the return call has been cancelled.