You can use the speed dial directory to make a call with the handset on hook or off hook.

To dial a speed dial number:

1.To display the speed dial directory, press button-full SpDial. If SpDial is not shown, press any button-full softkey.

2.To display different pages of speed dials, press button_half_left and button_half_right.
Key the first letter of the required name to jump to the page with a matching entry.  

3.When the required entry is displayed, press button-left or button-right next to the entry..