Founded in 1972, ONECALL Telecom is a full-service interconnects company that sells, installs, and maintains business telephone systems. It is an authorized distributor for Zultys, Altigen, and ESI brand communication equipment. The company s services include business telephone systems, local and long distance, high speed internet, POTS (Plain old telephone service) lines, voice mail applications, Voice over IP (Internet Protocol), managed network services, fleet management solutions and more. Based in Memphis, Tenn., the firm currently serves customers across Germantown, Collierville, Millington, Covington, Brownsville, Lakeland, Ellendale, and Arlington, as well as Arkansas and Mississippi.