... A. Number Settings: under the Pick-up handset or Speaker condition, press “ * ” for 4 seconds,and listen “ beep ” cont voice ), then input ... number will be dialed out automatically. 2) Redail Pick up handset and press redial key,would dial out the number that was ... hangup When finished the call, and the caller already hung up, or this telephone didn't hung up,the PBX will send busy ...