A network fax service system for Microsoft Windows NT/95networks, designed to support concurrent sending andreceiving of multiple fax documents by multiple users, utilizing one fax modem attached to the CTFax server. The clients can run on both NT/95 platforms. CTFax system was designed and implemented from the ground up to takeadvantage of the Microsoft Windows NT architecture. Itencompasses a robust and flexible fax server, and an intuitive and easy to use fax client.