Call the numbers you use the most
You can quickly call your friends and family when you assign your most-used phone numbers to the number keys of your phone.
Select > Settings and Calling > Speed dialling .
Assign a phone number to a number key
Select the number key to which you want to assign the phone number.
1 () is reserved for the voice mailbox.
Select the contact from your contacts list.
Select and hold the assigned key, and from the pop-up menu, select Remove or Change.
On the home screen, press and hold the assigned number key.