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Loaded with advanced capabilities yet amazingly easy to use, ESI’s patented
E-Class All-In-One Phone Systems give your
business the power to present your most professional side to your customers.
Big features; big capacities
Each E-Class phone system combines multiple
first-rate, feature-rich systems into one tightly
And, depending on the system and configuration you select with the help of
your ESI Reseller, an E-Class system can handle the communications needs of
- 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
— but friendly
Each ESI 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 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 an ESI E-Class
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.
- Full integration
One cabinet contains a phone system, voice mail/automated attendant and
automatic call distributor, all working together as an integrated whole.
- Eight message-on-hold (MOH) recordings
This feature provides a professional sound without licensing fees. Use the
three supplied music tracks, or record and use up to five of your own.
- Auto attendant
Provides extensive call routing, including directories, automatic day/night
operation, off-premises transfer, pager notification and more.
- Automatic call distribution (ACD)
ACD places sales or service personnel in departments and either (a.) routes a
call to the longest-idle agent or (b.) places the call on hold if all agents
are busy and then immediately connects when the first agent is available.
Constantly updates IP Feature Phone display regarding queues and wait times.
- Highest voice quality
Records voice messages with 64-kilobit-per-second sampling, for the highest
quality sound a telephone line can carry.
- Call statistics
Delivers detailed reports at the touch of a key and provides SMDR.
- TAPI support
(Basic Telephony Service.) Provided through the connection between the
workstation and the host ESI Feature Phone.
- T1/PRI support
Lets larger offices make fullest use of broadband lines.
- Up to 30 fully functional analog ports
Each allows voice mail, park/retrieve, transfer, page, call waiting,
off-premises message delivery and more.
- Conference calling
Includes the ability to include up to 24 people in conferences, and a
conference may contain up to four parties; so an E-Class system can support
six conferences of four parties each (or eight conferences of three parties
- Esi-Dex speed-dialing
Calls any number from three separate lists (personal, station and system);
uses Caller ID** information or direct keypad
- Intelligent Call Forwarding™
Forwards calls to you when you’re away from the office and sends along
the real caller’s original Caller ID** information
(if it’s someone calling from another extension on your phone system, you even
see his/her extension number), so you can see who the real caller is.***
- Dedicated overhead paging interface
Allows intra-system paging through the speaker built into the ESI Feature
Phone or through an ancillary overhead paging system.
- Built-in QoS (IP)
Quality-of-service control, built into the system, mitigates network data
bursts’ effects on voice quality.
- Optional IVX Presence Management
- Presence indication
- Access control
- ESI’s Personal Call routing
- Time and attendance logging (further enhanced by the Time and Management
- [More details available here.]
Voice mail features
- Up to 16 built-in voice mail ports
“Always-on” channels available for voice mail, auto attendant, call recording
without using system trunks of station ports.
- Off-premises message delivery
Delivery to a cell phone or home phone combined with pager notification, for
extensive notification capability.
- Urgent messages
Can deliver higher-priority messages first.
- Message Recycle Bin (undelete)
Remembers, and can restore, each mailbox’s 10 most recently deleted messages.
- Quick Groups
When a user wants to share a message with several other users, this feature
lets the user do so by just pressing VOICE MAIL and the appropriate
- Quick Move
Press a station key during live recording to move the message automatically to
that user’s mailbox.
- Virtual Mailbox Key
A programmable function key “tied” to any mailbox; allows simplified
monitoring of a second mailbox.
- Multiple personal greetings
Pre-record up to three greetings and assign them to a programmable key for
Allows a caller forwarded to a user’s voice mailbox to page the user over the
user’s business’s internal overhead paging system.
Lets one station user QuickPage another station by pressing a designated
QuickPage key followed by either a station extension or a programmable key set
for a station.
- Guest mailboxes
Make it possible to give voice mail to personnel (such as those in outside
sales or manufacturing) who may not have actual extensions assigned to them. A
guest mailbox can be handled like a regular extension (e.g., listed in
the directory, assigned a station key, etc.).
- Info mailboxes
These can be used to give callers information on a variety of different
subjects by “publishing” these mailbox numbers.
- Broadcast mailbox
The broadcast mailbox is used to leave a single message in all of the system’s
station users’ mailboxes.
- Group mailboxes
Each E-Class system supports up to 16 group mailboxes with up to 32 members
each. Users can set or change the list of group mailbox members.
- Message notification
On a mailbox-by-mailbox basis, the system can be programmed to call an
off-premises number or another extension to deliver messages and/or dial to an
external commercial paging network to activate a user’s pager.
- Cascade paging mailboxes
Ten cascade paging mailboxes can be assigned to anyone who requires escalating
levels of paging beyond the single level available in all user mailboxes.
- Q & A mailboxes
Ten question-and-answer (Q & A) mailboxes can store to 10 questions each. The
individual answer segments recorded by the caller are stored as a single
message, with the answer segments separated by short beep tones.
- Optional VIP
- Works with Microsoft Outlook
- Provides on-screen call control, voice mail management, contact
- Much more than simply unified messaging
- [More details available here.]
Auto attendant features
- Six levels, 100 branches
The many branches allow setup of a more caller-friendly answering environment,
including a company directory.
- Virtually unlimited call routing — Includes
off-premises transfer, pager notification, more.
- Call waiting
Display shows both calls’ Caller ID** information;
user can toggle between calls by pressing the FLASH key.
- Enhanced Caller ID**
ESI’s patented enhancements allow one-keystroke return of a call as well as
quick addition of the caller to the user’s speed-dial list.
- One-touch access to a number of features
This lets the user press dedicated keys rather than having to remember
multi-key codes. To access voice mail, the user just presses VOICE MAIL;
to perform a conference call, CONF; or, to transfer a call, TRANSFER.
- Esi-Dex built-in directory
- Works with Caller ID** to keep an
alphabetical speed-dial list; accessible with a keystroke and shown on the
- Three separate speed-dialing lists: personal, station and system.
- Users can make entries directly from the IP Feature Phone keypad, as
well as scroll through lists (to save time, users can select which names to
view within each list).
- Missed Call Key™
Allows review of Caller ID** data of an extension’s
last 10 unanswered calls in which each caller didn’t leave a message. The user
can return each call by pressing one key.
- Live call recording
Record a conversation, conference call or personal reminder memo for later
playback, as well as moving or copying to others’ mailboxes.
- Live call screening
Works like a home answering machine; the user can listen to a message while
someone leaves it. The user can pick up the handset at any time to take the
call or just let the caller continue to leave a message in his/her mailbox.
- Verbal Help Key™
and Verbal User Guide™
These use hundreds of prompts to guide users through virtually every feature
of the system.
- Virtual Answer Key™
For use when one is already on another call but wants to give special
attention to a second call that’s in call waiting. Set as many as two
programmable feature keys to be Virtual Answer Keys. Each plays a recorded
greeting telling the caller the user knows he/she is calling and, depending on
programming and how the prompt is recorded, can also give the caller an easy
way to dial out to another extension where he/she can gain immediate
- Service observing
Lets authorized personnel silently observe (and record) station-to-outside
- Off-premises “reach-me”
Allows a caller forwarded to one’s voice mailbox to reach the user at an
external number (e.g., home phone or mobile phone).
- Dedicated HOLD key
Supports both system-wide and exclusive (station-specific) hold. Permits
virtually unlimited hold “orbits.” (Also supports hold/retrieve with analog
phones.) Holds calls for easy pickup at any station without elaborate codes to
remember. For exclusive hold, just hold down the key for a second.
- Optional 60-Key
Programmable feature keys
The programmable feature keys can be programmed as follows:
- CO line key
Provides direct access to a particular desired line.
- Station key
Provides direct access to, and lamp information for, extensions, departments,
guest mailboxes, etc.
- Speed-dial key
Provides one-touch key for outside calls.
- Special feature keys
Can be set to provide one-touch access to the following features:
- Overhead paging key
- Message monitor key
- Manual day/night mode key
- Background announce key
- Service observing key
- Personal greeting 1
- Personal greeting 2
- Personal greeting 3
- ACD agent log on/off key
- ACD agent wrap key
- ACD administrator key
- Missed Call key
- Headset key
- Virtual Mailbox Key
- Virtual Answer Key
- Call forward key
Analog extension ports
Up to 30 analog extensions (28 on IVX) can be programmed, based on the number
of cards installed in the system. The ports can be defined as:
Designed to provide for standard 2500-type phones.
- Common ringer
Connected via a tip-and-ring pair; will apply ring voltage whenever a line
rings in night mode.
If the auto attendant detects a fax tone, it will automatically forward the
tone to the analog port programmed as a fax device.
Incoming calls for a modem can be manually transferred to the modem extension;
also, the modem can automatically generate outbound calls.
- Door phone
A telephone connected to this port will automatically dial the programmed
ring-down extension number whenever the set is taken off-hook.
IP-related features standard on IP E-Class, and optional on IVX E-Class. For
more information, consult your ESI Reseller.
** Requires Caller ID service from your telephone service provider.
*** Requires use of ISDN Primary Rate Interface (PRI) line.
****Configuration specs = CO (Central Office)
outside lines × ESI Feature Phones × analog ports.
IVX is a registered
trademark of ESI (Estech Systems, Inc.). Microsoft, Outlook, and
Windows are registered trademarks of Microsoft Corporation.
E-Class products available from only Resellers with ESI factory training.
Product specifications subject to change without notice. Some features mentioned
herein may not yet be available.