Electronic Tele Communications, Inc. engages in the designing, manufacturing, and marketing of digital voice information systems and related services. Its equipment provides audio and computer information and call handling capabilities via telephone and computer networks and the internet. Its digital voice information systems deliver network interoperability and revenue-generation applications. The company was founded by George W. Danner, Hazel Danner, Joseph Zimmerman, Dean W. Danner, and Bonita M. Danner in 1980 and is headquartered in Waukesha, WI.