Find "Phonebook"
Press the Navigation key.
Scroll to Phonebook and press the Navigation key.
Assign contact to speed dialling key
Press Options.
Scroll to Phonebook settings and press the Navigation key.
Scroll to Speed dial and press the Navigation key.
Scroll to Set numbers and press the Navigation key.
Highlight the required speed dialling key and press the Navigation key.
Highlight the required contact and press the Navigation key.
Press the Navigation key to confirm.
Exit
Press Disconnect to return to standby mode.