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Reliant Communications   Austin, TX

 

 

 

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ESI phone systems at a glance

Return to: IVX S-Class  •  E-Class (IVX/IP)  •  IVX X-Class

 Phones/systems compatibility
  See also phone comparison chart on this page
pt = port  •  IAM = Integrated Answering Machine  •  VM = Voice mail

  IVX IP E-Class
Gen. II
IVX C-Class
Gen. II
IVX S-Class
Gen. II
IVX E-Class
Gen. II
IVX X-Class
IVX 20c IVX 56s IVX
72e
IVX
128e
IVX
128x
IVX
256x
IP
40e
IP
200e
Voice messaging
configuration
No VM 2-pt
VM
IAM 4-pt
VM
6-pt
VM
8-pt
VM
16-pt
VM
24-pt
VM 
24-pt
VM
8-pt
VM
16-pt
VM
48-Key
Feature Phone
— — Yes Yes Yes Yes Yes Yes Yes Yes Yes
24-Key
Feature Phone
Yes Yes Yes Yes Yes Yes Yes Yes Yes n/a n/a
12-Key
Feature Phone
Yes Yes Yes Yes Yes Yes Yes Yes Yes n/a n/a
60-Key Console
support
— — Yes Yes Yes Yes Yes Yes Yes Yes Yes
IP phone
support
— — — — — Opt. Opt. Opt. Opt. Yes Yes
Remote IP
Feature Phones
— — — — — Opt. Opt. Opt. Opt. Opt. Opt.
 

 Features and options
  See also phone comparison chart on this page
pt = port  •  IAM = Integrated Answering Machine  •  VM = Voice mail 

  IVX IP E-Class
IVX C-Class
Gen. II
IVX S-Class
Gen. II
IVX E-Class
Gen. II
IVX X-Class
IVX 20c IVX 56s IVX
72e
IVX
128e
IVX
128x
IVX
256x
IP
40e
IP
200e
Voice messaging
configuration
No VM 2-pt
VM
IAM 4-pt
VM
6-pt
VM
8-pt
VM
16-pt
VM
24-pt
VM 
24-pt
VM
8-pt
VM
16-pt
VM
Maximum call-
processing ports
20 20 56 56 56 72 126  126 252 58 192
Available
port card slot(s)
1 1 3 3 3 4 7  7 14 2 10
Smallest configuration
Lines Χ extensions
Χ analog ports
3Χ6
Χ2
3Χ6
Χ0
4Χ8
Χ2
4Χ8
Χ2
4Χ8
Χ2
6Χ12
Χ0
6Χ12
Χ0
6Χ12
Χ0
6Χ12
Χ0
3Χ0
Χ3
3Χ0
x3
Maximum CO lines 6 6 16 16 16 42  66  78 84 30 66
Maximum extensions 12 12 32 32 32 48 84  84 168 28 96
Maximum analog ports 2  2 8  8 8 16  28  28 56 6 30
Maximum T1 channels — — — — — 24 48  48 72 24 48
Maximum PRI channels — — — —  — 23  46  46 69 23 46
Network Services
Processor (NSP)
— — Opt. Opt. Opt. Opt. Opt. Std. Std. Opt. Opt.
VIP™ communications management n/a — Opt. Opt. Opt. Opt. Opt. Opt. Opt. Opt. Opt.
TAPI support — — Opt. Opt. Opt. Opt. Opt. Opt. Opt. Std. Std.
IVX Presence
Management
— — Opt. Opt. Opt. Opt. Opt. Opt. Opt. — —
Time and Attendance Management Option — — Opt. Opt. Opt. Opt. Opt. Opt. Opt. — —
Esi-Link™ IP
multi-site support
— — — — — Opt. Opt. Opt. Opt. Opt. Opt.
Maximum built-in
user mailboxes
n/a 14 n/a  30 30 48  84  84 168 34 126
Built-in
automated attendant
n/a Yes n/a Yes Yes Yes Yes Yes Yes Yes Yes
Maximum automated
attendant
branches
n/a  18 n/a 18 18 100  100  100 100 100 100
Voice message
storage
(hrs.)
n/a 2 0.5 6 30 140 280  420 420 70 280
Built-in voice
message
channels
n/a  2 2 4 6 8  16  24 24 8 16
Guest/information
mailboxes
n/a 10 n/a 10 10 190 190  190 190 190 190
Automatic fax switching Yes  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Music/message-
on-hold sources
2 5 4 5 5 8 8  8 8 8 8
SMDR (Station Message Detail Recording) Yes  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Internal paging Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
External paging
interface
Yes  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Built-in modem Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Dedicated serial ports 1 1  1 1 1  1  1 1 1 1
Maximum simultaneous conference calls 
(4 per conference)
2 2 2 2 2 4 4 6 6 4 4
Privacy release Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Programming
via PC
, local
— — Yes Yes Yes Yes Yes Yes Yes Yes Yes
Programming
via PC
, remote
— — Yes Yes Yes Yes Yes Yes Yes Yes Yes
Esi-Dex™
built-in directory
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
ACD (automatic
call distribution)
— — — — — Yes Yes Yes Yes Yes Yes
ACD reporting n/a n/a n/a n/a n/a Yes Yes Yes Yes Yes Yes
Verbal Help Guide™ — 
spoken help
Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Dedicated
VOICE MAIL key

(24-/48-Key Phones)
n/a  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Live call recording* n/a Yes — Yes Yes Yes Yes Yes Yes Yes Yes
Live call screening n/a  Yes ** Yes Yes Yes Yes Yes Yes Yes Yes
On-hold dialing Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Three-character
dial-by-name from
auto attendant
n/a — — — — Yes Yes Yes Yes Yes Yes
Enhanced Caller ID*** Yes  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Caller ID data***
to analog ports
Yes  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Call forwarding Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Intelligent Call
Forwarding
™ on PRI lines
— — — — — Yes Yes Yes Yes Yes Yes
Shared-office tenants — — — — — 2 2 4 4 2 2
Personal greeting keys n/a Yes ** Yes Yes Yes Yes Yes Yes Yes Yes
Service observing — — — — — Yes Yes Yes Yes Yes Yes
911 alert Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
AutoPage — — — — — Yes Yes Yes Yes Yes Yes
Cascade paging
mailboxes
n/a 10 — 10 10 10 10  10 10 10 10
Q & A mailboxes n/a — — — — 10 10  10 10 10 10
Group mailboxes n/a — — — — 16 16  16 16 16 16
Off-premises
message delivery
Yes  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Off-premises
“reach me”
Yes  Yes Yes  Yes Yes Yes Yes Yes Yes Yes Yes
 Message Recycle Bin n/a  Yes ** Yes Yes Yes Yes Yes Yes Yes Yes
Missed Call Key — — — — — Yes Yes Yes Yes Yes Yes
Quick Groups™ n/a Yes — Yes Yes Yes Yes Yes Yes Yes Yes
Quick Move™ n/a Yes — Yes Yes Yes Yes Yes Yes Yes Yes
QuickPage™ — — — — — Yes Yes Yes Yes Yes Yes
Remote recording
of main greeting
n/a  Yes —  Yes Yes Yes Yes Yes Yes Yes Yes
Voice mail display* n/a  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Visual hold Yes  Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Virtual Answer Key n/a — Yes Yes Yes Yes Yes Yes Yes Yes Yes
Virtual Mailbox Key* n/a  Yes — Yes Yes Yes Yes Yes Yes Yes Yes

Phone comparison chart

Phone
model
12-Key
Digital
24-Key
Digital
48-Key
Digital
48-Key
Digital
TAPI
48-Key
IP
48-Key
Remote
IP
60-Key
Console
Display (lines • 
characters)
1 • 16 2 • 32 3 • 56 3 • 56 3 • 56 3 • 56 n/a
Programmable
feature keys
9 12 30 30 30 30 60
Fixed feature keys 3 12 17 17 17 17 n/a
VOICE MAIL key **** Yes Yes Yes Yes Yes n/a
Built-in headset jack***** — — Yes Yes Yes Yes n/a
Speaker Yes Yes Yes Yes Yes Yes n/a
Microphone (for
spkrphn. use)
— Yes Yes Yes Yes Yes n/a
Four-angle
tilt stand
Yes Yes Yes Yes Yes Yes Yes
Status
indicator lamp
— Yes Yes Yes Yes Yes n/a

*

Not available on 12-Key Feature Phone.
** Master User only (IAM-equipped systems).
*** Requires Caller ID service from your telephone service provider; Caller ID not enhanced on 12-Key Feature Phone.
**** No dedicated VOICE MAIL key, but any of the programmable feature keys can be programmed to perform the same functions.
***** On models shipped since March 1, 2004.