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 ...

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 ...

The ESI 250 Smartphone is a high-performance enterprise-grade IP desktop phone that harnesses the power, communications productivity, and flexible ease-of-use of the Android OS.