Application Development Consulting Services Application Development Consulting Services LAN / WAN / VPN Management Alliant DataTel's name says it all. We offer end-to-end solutions that include design, installation and management of both data and voice networks. Site Survey Alliant DataTel routinely provides Site Survey services to assist managers in determining needs and avoiding problems with both voice and data lines and equipment. Wireless WAN / LAN. We offer mobility and access to the Internet without being tied down with cables.