The invention comprises a method of providing a phone number with speed dialing facility when said phone number is already stored without speed dialing facility in a phone number database, which has a first group of memory locations with associated speed dialing facility and a second group of memory locations without speed dialing facility, said method comprising indicating the phone number whose speed dialing status is to be changed, indicating a memory location with a phone number having the desired speed dialing status and interchanging the speed dialing status of the two phone numbers.