Contact data in a phonebook database for a personal communication device
are remotely updateable from, or transferable between, a computer system
using a wireless radio frequency connection. New contact data, and
changes or updates to existing contact data, are input at the computer
system or the personal communication device and may be utilized in the
personal communication device to initiate contact with other
communicants. Contact data including name, telephone number, address,
sound or image information associated with actual or potential
communicants is transferred between a computer system and a personal
communication device utilizing a wireless radio frequency connection. The
personal communication device can be a cellular telephone, PDA or pager,
and may also include interfaces for local programming of contact data
from a removable keyboard. Additionally, updates and transfers between a
computer system may be or an infrared interface for local updates and
transfer of contact data between a computer system.