The University of Colorado (CU) Communicator system combines continuous speech recognition, natural language understanding and flexible dialogue control to enable natural conversational interaction by telephone callers to access information from the Internet pertaining to airline flights, hotels and rental cars. Specifically, users can describe a desired airline flight itinerary to the Communicator and use natural dialog to negotiate a flight plan. This talk will describe our spoken dialog speech technology components that have recently been made available to the community under an open source license for non-commercial use. Under this license, commercialization rights can be obtained through membership in the Center for Spoken Language Research (CSLR) industrial consortium. The talk will also describe the Phoenix natural language parser, it's use, and potential applications. The Phoenix parser is released as open source for unrestricted commercial use by CSLR at the University of Colorado.