To activate 1-touch dialing, select Menu > Settings and Calling > Call > Speed dialling.
To assign a phone number to one of the number keys, select Menu > Settings and Calling > Speed dialling.
Go to the key to which you want to assign the phone number, and select Options > Assign.
1 is reserved for the voice mailbox.
To call in the home screen, select Telephone and the assigned key, and press the call key.
To call in the home screen when speed dialling is active, select Telephone, and select and hold the assigned key.