CORPORATE OFFICES: 2744 EOFF STREET, PO BOX 6650, WHEELING WV 26003

                          TELEPHONE: 304-233-3000   FAX: 304-233-9666

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CORPORATE OVERVIEW  

ESI is a privately held company with headquarters in Plano, Texas, just outside of Dallas. Rapid growth, stable management and innovative technology
have characterized ESI since its founding in 1987.  In May of 1993, ESI moved into a spacious facility that houses both its headquarters and its
manufacturing operation.

ESI designs and manufactures high efficiency, low cost business telephone products.  These products have earned numerous product awards from
industry publications.

 

IVX Class          

In 1995, after several years of success in producing voice mail products, ESI used its advanced voice storage and DSP software development skills,
combined with phone system hardware design expertise, to create the IVX® All-In-One Digital Phone System — the first telephone/voice mail system
based on a single processor.

Its great success led in 1999 to the introduction of the larger and even more fully featured IVX 128 system. ESI became an early leader in the exploding
VoIP (voice over Internet Protocol) marketplace in 2001 when after years of extensive research and testing, it began shipping an IVX Series model that could
be upgraded to deploy VoIP. Also ESI released in 2002, Esi-Link — offering multi-location customers the convenience and cost savings of networked
communications. These VoIP solutions are unique in their simplicity of support and administration.

In 2003, ESI began shipping an all-new generation of business phone systems — E-Class and S-Class — and, in 2004, these highly successful products were further
enhanced with the Generation II feature set, which offers even greater application flexibility. The new, larger X-Class system also was announced in 2004, along
with VIP — a call management solution which lets users manage their voice mail.

The IVX E-Class Generation II and X-Class systems are ESI’s flagship products. Each offers a selection among multiple Digital Feature Phones, cost-effective
expansion capabilities, automated attendant, automated call distribution (ACD), and voice mail. Also, these systems boast extensive expandability, with up to
252 call-processing ports and up to 420 hours of voice storage, along with support for T1, ISDN PRI, and TAPI computer/telephony integration (CTI).
IP capabilities can be added to IVX X-Class and IVX E-Class, allowing existing customers to benefit from VoIP technology as the need arises.

ESI Communications Servers 

An ESI Communications Server is a fully flexible platform. It can be as digital-based, IP-based, or combined (digital- and IP-based) as you require.
ESI has valuable experience with this technology: They were one of the first in our industry to create purely IP-based phone systems, as well as to add IP
capability to digital systems. All ESI Feature Phone models, both digital- and IP-based, provide advanced ESI phone features. This lets you tailor the phone
choice to each user’s individual needs. ESI Digital Feature Phones provide superb, proven performance, and quickly plug into any digital phone jack.

Want to save yourself the trouble and expense of wiring new phone outlets? ESI’s state-of-the-art IP Feature Phones work from anywhere on your network.
They also can go to most remote sites with broadband service, so executives and others can work from home while still having access to the office phone system
and ESI features. Do you have multiple locations? You can connect up to 100 IP-enabled ESI systems on an Esi-Link™ network for more convenient communications
and significant long-distance savings.

                                                                   

 Server sizes are ESI-1000, ESI-600, ESI-200, ESI-100, and the newest addition to the product line ESI-50 & ESI-50L

      

                                              ESI desktop phone models, left to right:

48-Key Digital Feature Phone, 24-Key Digital Feature Phone, 48-Key Digital Feature Phone with optional Expansion Console, 12-Key Digital Feature Phone, 48-Key IP Feature Phone II.

 

 

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Copyright © 2011 Advanced Communications Company
Last modified: 02/02/11