
Loaded with advanced capabilities yet amazingly easy to use, ESI’s patented IVX E-Class All-In-One Phone System gives your business the power to present your most professional side to your customers.*
Big features; big capacities
IVX E-Class 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 ESI Presence Management
- Optional VIP family of communication management tools
- Network-based VoIP telephony, standard or optional
And, depending on the system and configuration you select with the help of your ESI Reseller, IVX E-Class can handle the communications needs of bigger organizations:
- Up to 96 stations
- Up to 66 CO lines
- T1 support — Up to 48 T1 lines
- 70, 140, or 280 hours of voice message storage
- More sophisticated voice mail features
- Automated attendant has six levels, 100 branches
- TAPI support

ESI’s 48-Key Feature Phone
(Digital version shown)
Powerful — but friendly
ESI’s IVX E-Class 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. There are several different models of ESI desktop Feature Phones. Each is a compact, attractive addition to any desk, designed to simplify your telecommunications. Here are just two examples:
- 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 IVX E-Class.
If you’re frequently on the move throughout your workplace, an ESI Digital Cordless Handset is the easiest way to stay in touch with other system extensions, not to mention your voice mail. The ESI-exclusive Quick Switch feature makes it easy to go from desktop
And each ESI phone, digital or IP, also works with ESI Communications Servers, simplifying your migration to a larger ESI system when your business grows.
Easy to choose; easy to use
An IVX E-Class All-In-One Phone System 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 IVX E-Class’s unique integration provides call
processing efficiency and cost savings previously impossible.


