Kansas City-based Premiere Technologies Inc. acquired American Teleconferencing Services Ltd., which employs 300 people in Colorado Springs. Premiere paid $58 million for ATS, including assumption of the companys debt. Robert Cowan, ATS Chairman, CEO, founder and graduate of Wasson High School, will serve as chairman of the wholly-owned subsidiary. President Roy Cammarano will serve as president and chief operating officer. ATS handles conference calls for events and groups of all sizes, including IBM, Hewlett-Packard and Merrill Lynch. Premiere hopes to become the leader of enhanced communications services through both the Internet and the telephone.