Cellular phone managing method, managing apparatus, record medium and cellular phone apparatus

摘要

A user information generation unit generates user information containing charge arrears statuses from receipt arrears information. A specific user dealing unit extracts specific users from the user information on a delinquent period basis and issues dunning or function restrictions by mail to specific user cellular phones depending on the delinquent period. The specific user dealing unit extracts users which have paid charges as good specific users from the user information and posts cellular phones of the good specific users on the provision of incentives.