In the early 1990s, Burton recognized the challenges vendors and the channel faced as they developed and installed integrated voice/data products. He became the leading authority in the voice/data integration industry and is credited with "coining" the term computer-telephone integration (CTI). Burton helped companies including Microsoft and Intel enter the voice market and helped AT&T (now Avaya), Mitel, NEC, Nortel, Siemens and Toshiba with their CTI strategies.
In the late 1990s, venture capitalists turned to Burton for help in evaluating potential investments in IP PBX start-ups. He went on to help these and other companies with strategic planning and partnering, including NBX (acquired by 3Com, Selsius (acquired by Cisco), ShoreTel and Sphere Communications.
In the early 2000s, Burton began focusing on wireless services and technologies. In 2005 Burton started helping vendors with their Unified Communications strategy and in 2006, along with several colleagues, created a web site, UCStrategies.com, to provide information for enterprise customers and vendors.