Dial
To place a call, pick up the handset and enter a number. Or, try one of these alternatives.
Redial Last Number
Press Redial to redial on your primary line. To redial on another line, press the line button first.
Dial On-Hook
1.Enter a number when the phone is idle.
2.Lift the handset or press Call, Headset 
, Speakerphone 
, or Select.
Speed Dial
Enter a speed-dial item number and press SpeedDial. You may also have speed dials assigned to some buttons along the left side of your phone.