(
WILliams
TELecommunications Group) An international long distance carrier and network services provider, formed in 1987 by a merger of Williams Telecommunications Company and LDX Net, Inc. WilTel grew by acquiring several companies and was the first to offer fractional T3 service and high-capacity, switched digital lines for videoconferencing. In 1994, it was acquired by WorldCom. See
WorldCom.