American Tel-A-Systems Incorporated, doing business as AMTELCO, provides customized call center systems, software applications, and XDS technologies for call centers, contact centers, healthcare facilities, higher education facilities, executive suites, and developers. The company offers Infinity system that provides call centers with tools, such as automatic call distribution, voice processing, text messaging, PBX capabilities, and digital switching to transform businesses into specialized customer resource centers; Order Entry application, which enables to create customized catalog-based Web applications; miSecureMessages, a secure cloud-based messaging and notification application that sends encrypted messages to BlackBerry, iPhone, iPad, and Android mobile devices; and miOnCall, a secure cloud-based OnCall scheduling application used to assign schedule coverage, view schedule coverage, dispatch messages, schedule contacts, and manage and extend OnCall schedule information to physicians and staff via Web access. It provides XDS boards and drivers. The company offers its products through distributors/partners. American Tel-A-Systems Incorporated was founded in 1976 and is based in McFarland, Wisconsin.