Founded in 1989 and headquartered in Norcross, Ga., United States Advanced Network, also known as USAN, provides advanced network-based interactive voice response solutions to global enterprise and carrier customers. USAN focuses primarily on providing enhanced call routing and IVR services, as well as custom application development. USAN is an enhanced services platform and its technologies enable more efficient and effective communication with customers while minimizing operational costs and enhancing customer satisfaction and revenue. USAN operates network nodes in Sacramento, Calif., Atlanta, Norcross, West Orange, N.J., New York City, Philadelphia, Chicago and Dallas. Its sales offices are located in Norcross and Branford, Conn.