
The superior communication power that your office needs— today and tomorrow.
All ESI products are designed with combined proprietary hardware
and software platforms. ESI proudly engineers and manufactures its
systems’ hardware in the United States. Software is created and
maintained by senior-level ESI engineers and developers.
ESI’s all-in-one phone systems (ESI-600, IVX, and IP E-Class)
deliver advanced operating performance through seamless feature
integration. They are the “smartest” phones on the market, much less
in their respective price ranges.
Other phone system options include:
Reconditioned
Phone Systems ![]()
Phone System
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Communication Servers (IP) |
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ESI CS 1000
- The science behind ESI Communications Servers is sophisticated, yet
simple: each supports both digital functionality and IP-to-the-desktop,
in any desired combination.
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ESI CS 600 -
ESI Communications Servers come in several models which vary primarily
in capacity. Chances are that one will be just right for your
workplace’s particular communications needs.
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ESI
CS 200 for Converged
Communications can be: a traditional digital business phone system; a
fully standards-based IP telephony system; or any mix of the two. The
choice is entirely yours, and the mix can easily change when your needs
do. Like other higher-end ESI business telephone systems, the ESI-600
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ESI
CS 100 Whether you have many users and outside lines, just
a handful of each, or something in-between, an ESI Communications Server
grows with you. For modest call-handling needs, a smaller ESI system may
do. From there, ESI’s larger platforms allow additional growth and
customization.
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Digital & VoIP Phone Systems |
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ESI IVX X-Class Phone System 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. |
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ESI IVX S-Class Phone System gives your small to medium-sized business the power to present your most professional side to your customers. Each IVX phone system says, “Good morning.” It teaches you how to use and program it. It reminds you to change your personal greeting after a trip. And it stands by, ready to assist you whenever you need help. |
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ESI IVX C-Class Phone System ESI builds big-system features into the small-business IVX C-Class. The patented IVX phone system design means all the vital business communications features are built-in — not added-on. Equipped to handle up to six phone lines, 12 digital stations and two analog stations for fax machines or cordless phones, IVX C-Class gives your business a competitive edge. |
Compatible Products |
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ESI-Link uses your WAN or the Internet to join together up to 100 compatible ESI phone systems into one interconnected, IP-based system. While ESI wasn’t the first company to offer a multi-site solution, it was the first to offer one that unites the many advantages of multi-site communications (see full details) with the unique, high-performance features of ESI phone systems. |
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ESI Presence
Management is a hardware and software solution incorporating
an innovative combination of RF scanning technology and ESI’s
award-winning telephone systems. ESI Presence Management is offered as a
basic doorphone solution for addressing basic entry and exit
applications, and as an advanced supervisory solution utilizing RFID
technology to provide access control and personnel location. Optional
ESI TimeLine™ PC software maximizes the value of this amazing product.
ESI
Presence Management Brochure
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ESI Cordless Handset uses proven, reliable 900 MHz technology to provide mobility to the user who’s constantly on the move in the office. (Why 900 MHz? Because it passes through walls far more effectively than cordless telephony using the 2.4 GHz and 5.8 GHz bands, which are intended more for residential than workplace use.) You get the same rich ESI feature set as in the 24-Key Feature Phone — but in a compact, lightweight, portable handset. The ESI-exclusive Quick Switch feature makes going from your desktop ESI phone to your Cordless Handset, or back again, as easy as pressing a key. |
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ESI VIP (Visually Integrated Phone), you combine the power of your ESI phone system and Microsoft Outlook to enhance communication in your day-to-day activities — including the ability to control calls and organize voice mail and contacts. |
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ESI PC Attendant Console Handling an active office’s phone traffic is an incredibly demanding task, particularly for an attendant who has other duties as well. That’s why we’ve created ESI PC Attendant Console. Built on the incredibly full-featured VIP Professional software platform, ESI PC Attendant Console is ready to give even the busiest attendant the tools to handle call traffic and help keep the office running smoothly. |