Each IVX E-Class phone system combines multiple first-rate, feature-rich systems into one tightly integrated unit:

• Business phone system
• Voice mail
• Automated attendant
• Messages-on-hold
• Enhanced Caller ID**
• Automatic call distributor (ACD)
• Intelligent Call Forwarding™ †
• Optional VIP communication management tool
• Network-based VoIP telephony

Learn About VoIP

Learn About VIP

Watch Video Demo About ESI Phones

And, depending on the system and configuration you select , an E-Class system can handle the communications needs of bigger organizations:

• Up to 96 stations
• Up to 66 CO lines
• T1 support — Up to 48 T1 lines
• Up to 280 hours of voice message storage
• More sophisticated voice mail features
• Automated attendant has six levels, 100 branches
• TAPI support

• The display is large and easy to read.
• The dedicated function keys (so you don’t have to memorize codes) give you more ease of use, even with the enhanced capabilities of an ESI E-Class system.

And each ESI IP Feature Phone works with either IP E-Class or properly equipped IVX E-Class (or IVX X-Class) systems, making it simple for an IVX E-Class system to migrate to an IP E-Class or IVX X-Class system if you desire.

Easy to choose; easy to use
Any of these E-Class All-In-One Digital Phone Systems is an easy choice over other phone systems. Its ease of use and feature-richness reduces staff frustrations, increases productivity and enhances your corporate image. And an E-Class system's unique integration provides call processing efficiency and cost savings previously impossible.

IP E-Class  View PDF Brochure

IP 200e is an advanced, IP (Internet Protocol) network-based business telephony system combining the best of both the telephony and data worlds

• For offices with higher-bandwidth needs,T1 and PRI support is also available through the installation of DLCs (Digital Line Cards) — one on IP 40e, up to two on IP 200e.
  
• Impressive expansion capability-Handles up to 66 CO lines and up to 96 stations. T1 and PRI support— Can connect to higher-bandwidth lines, which more and more offices use.
  
• Esi-Dex speed-dialing — Calls any number using four separate lists (personal, station, system and — when Esi-Link is in use — location); uses Caller ID information or direct keypad entries to store numbers.
  

• Conference calling— Includes four conference bridges, each of which can include up to four participants. Conferences can be created from digital, IP, and/or analog extensions.
  
• Call waiting-Includes helpful display, showing both calls’ Caller ID information, and easy one-key toggling between calls.
  
• Shared-office tenanting
  
• Integrated headset jack on IP Feature Phone
  
• Caller ID to analog ports
  
• Optional VIP for Microsoft Outlook
  
• Intelligent call forwarding
  

Ever wish it could be simpler ( not to mention cheaper) for the people at your various locations to talk to each other? Ever wished also that this could occur without your people losing the special features that your phone system has?

Wish no more. ESI's exciting Esi-Link (easy-link) technology helps you unite your team members, whether they're a street, a city or a country apart.

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 with the unique, high-performance features of ESI phone systems.

As the name implies, Esi-Link is amazingly easy to use. For just one example: let's say you want to call an extension at another one of your locations. Up to now, you'd have had to make a regular phone call (and run up the charges associated with that). But, with an Esi-Link-enabled ESI phone system, simply press one key to get dial tone from that office, and then dial the extension just as you would if it were right down the hall, instead of miles away - perhaps even thousands of miles away. And this all happens over your data network; so, if you have additional lines (especially expensive dedicated phone lines), it's even easier on your bottom line than it is to use.

Remote IP Phone   View PDF Brochure

A fully featured office phone that doesn't have to be installed in an office: it's a great idea. It's ESI's Remote IP Feature Phone.

The Remote IP Feature Phone can be installed just about anywhere. And it truly is a regular extension on your ESI X-Class or E-Class phone system. So, whether you’re operating a field office or working out of the one you live in, ESI's Remote IP Feature Phone gives you all of the great features of your office’s IP-enabled ESI phone system anywhere you have a suitable broadband connection* to the office phone system; the Remote IP Feature Phone does the rest.