Abstract: A contact management system having wireless telephone interface capability for managing contact information and the contents of a wireless telephone's phone book memory. The contact management system comprises, according to a preferred embodiment, a computer system communicatively connectable to wireless telephone, and a contact management software application operating on the computer system. The contact management system enables the collection and maintenance of information pertaining to a plurality of contacts, including voice telephone numbers of the contacts. The contact management system also enables selection and grouping of user-identified voice telephone numbers into fone lists which are independently selectable and downloadable to a wireless telephone via a communication interface which is capable of choosing an appropriate device driver which is compatible with the wireless telephone.