ESI CS 1000 - Communication Server

The ESI-1000 Server architecture allows expansion when required. Each system cabinet (one Base Cabinet and up to five Expansion Cabinets) mounts in a standard equipment rack or on the wall.

ESI CS 1000 Server is Powerful — but friendly

Despite its long list of features, an ESI Communications Server — thanks to famous ESI ease-of-use — is a phone system you’ll find friendly. It 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 phone display is large and easy to read; that's even more true for a backlit display, which is available on certain models.
The dedicated function keys (so you don’t have to memorize codes) give you more ease of use, even with an ESI Communications Server’s enhanced capabilities.
On the go?

If you’re frequently on the move throughout your workplace, an ESI Cordless Handset II 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 extension to the Cordless Handset II at a moment’s notice; just press a key. Or, if you’re “tied” to your cell phone, ESI Cellular Management — part of ESI Bluetooth Voice Integration — simplifies your communications through the power of fixed/mobile convergence.

ESI CS 1000 System highlights

esi cs 1000 server

(maximum capacities shown)

Total stations - 816
IP stations - 816
Digital stations - 504
Analog stations - 384
Call-processing ports - 1,128
Central Office (CO) lines - 240
Digital line cards (T1/PRI) - 10
Voice mail ports - 128
Voice storage (hours) - 1,200
Station/special-purpose mailboxes - 1,941
Conference ports (16 members/conference) - 64
Built-in automatic call distribution (ACD) - Yes
Shared-office tenanting (tenants) - 8
ESI Presence Management - Optional
VIP applications - Optional
Mirrored Memory Module (M3) backup - Standard

Additional ESI CS 1000 Communications Server features:

  • Both digital and IP-based
  • Standards-based design (including SIP support)
  • ESI’s Verbal User Guide™
  • Six-level, 100-branch automated attendant
  • Automatic call distribution (ACD)
  • ESI phones
    ◦Desktop and cordless models
    ◦Digital and IP
  • ESI options
    ◦ESI Presence Management™
    ◦VIP™ family of applications
  • Optional IP-based features, including Esi-Link (combines up to 100 ESI systems into one)

Extensive phone options

  • ESI Digital Feature Phone — 12-Key, 24-Key, 48-Key regular, and 48-Key TAPI.
  • ESI 48-Key IP Feature Phone II — Connects via LAN, WAN, or Internet; provides full ESI feature set via IP, either locally or at remote location; uses industry-standard G.711 and G.726 compression to reduce bandwidth requirements.
  • ESI Cordless Handset — Two sizes each of three models: Digital, [local] IP, and Remote IP; IP models allow Power over Ethernet (PoE) or AC power for your maximum convenience.
  • Standard analog sets
phone installation services
Business Telephone System Installation, Programming & Training

Whether you have a Nortel Norstar or ESI Phone System we have the expertise to help you. If you are relocating your business and need your phone system relocated, call us, we can have you up and running with out dropping a single call.

Baltimore Phone Installation? We install business phone systems in Baltimore MD.


ESI Phone Systems

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Servicing ESI & Nortel Phone Systems throughout the State of Maryland