The computer system described in this paper answers incoming telephone calls and employs speaker-independent speech recognition to identify callers. The users of the system can define caller-specific treatment and change this treatment using a graphical user interface. Apart from relating and receiving spoken messages, the system also offers advanced telephony features such as paging and call forwarding, providing the required subscription services are available from the telephone company. Standard interfaces to the telephony and audio hardware are used, so that the system runs on a desktop PC equipped with a voice-enabled modem.