A computer/telephony integrated single-point-of-contact system (CISS) enabling a user to contact another using multiple devices with a single contact attempt is disclosed. A plurality of computer programs residing in a computer use a subscriber database, authorization database, priority list database, and device attributes database to determine how to respond to a request to contact a subscriber. If the request is an emergency, the computer repeatedly contacts all of the subscriber's devices until a response is received. Otherwise, the computer contacts the subscriber's devices in a sequential order determined by the subscriber. The computer can also delete redundant un-received messages from a subscriber's devices and create a real-time connection between the requester and the subscriber, if it is technically possible, at the subscriber's request.