A system and method for providing centralized control of one or more communication services, includes an Integrated Services Controller (ISC), which is in communication with any number of communications networks, such as the Public Switched Telephone Network or in the Internet. The ISC may be further configured to dynamically receive a Message Registration List (MRL) through an interactive exchange of commands with one or more communications services. This MRL may include one or more messages in which a particular communications service has a notification interest. The ISC may provide centralized processing for messages received from the communications services. Intelligent prioritization rules may be configurable by a communications service provider so as to affect the prioritization of the communications services by ISC.