The ESI ePhone7 sets a new direction for business phones by delivering a mobile user experience at the desktop, enabling users to be more efficient and productive every day.

PLANO, Texas--(BUSINESS WIRE)--April 7, 2006--ESI, a leading manufacturer of business telephone systems, has announced that 2005 was its 18th straight profitable year of operation. Additionally ...

ESI ePhoneGO™ mirrors the functionality of an ESI business phone, and offers a streamlined user interface which is essential for employee adoption of mobile applications. As part of the ...

The U.S. Patent and Trademark Office has awarded ESI, a leading manufacturer of digital and IP-based business telephone systems, a patent for Quality of Service (QoS) in a Voice-over-Internet ...