Lift handset, dial '53', answer call. Lift handset, dial '589'. Last number you called is automatically dialed. When you hear short bursts of ringing, line is now free. Lift handset and number is automatically dialed.
Call is automatically 'Parked'.
First call is automatically placed on hold while you are taking the incoming call. One digit is now programmed to represent the entire number. The number programmed to that digit is automatically dialed. The number formerly assigned to that access code is now erased. To order, fill out a Service Request .