Comverse is conversant with communications technology. Comverse provides communication software and associated equipment. Its systems handle messaging, billing and accounts, call management, and data delivery services. Comverse also provides related services such as consulting, design implementation, interoperability testing, maintenance, support, and training. Comverse markets to wireline and wireless network service providers worldwide. Its customer list has included communications service providers such as AT&T, China Telecom, Deutsche Telekom, SingTel, Verizon Wireless, and Vodafone.