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ESI IVX 128 Digital Phone System w/ 612 Port Card

ESI IVX 128 Digital Phone System w/ 612 Port Card

SKU 11542 IVX 128 B1 612 Refurbished (Grading Guide)
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Item Information
IVX 128 (IVX stands for Integrated Voice Exchange, while 128 indicates the system’s maximum number of call-processing ports) is an advanced business telecommunications system that includes not only phone service but also voice mail, an automated attendant, automatic call distributor (ACD) and computer integration. The system itself is housed in a surprisingly small case that is wall-mounted in the telephone equipment room. An external, wall-mounted power transformer powers the system.
IVX 128 expands from its basic six-line, twelve-station configuration to handle as many as 66 CO lines. For offices with higher-bandwidth needs, T1 support is also available through the installation of one or two T112 cards.

System Features

  • Impressive expansion capability — Handles up to 66 CO lines and up to 84 stations.
  • T1 support — Can connect to higher-bandwidth lines, which more and more offices use.
  • Digital Feature Phone — Compact, rugged design; includes a high-quality speakerphone, large and informative multi-functional display, and a specially designed key layout with several dedicated keys to minimize or eliminate the need to memorize codes. (A TAPI model is available; it’s compliant with Basic Telephony Service.)
  • Extensive help — Verbal User Guide™ uses spoken and displayed help prompts to help everyone from the Administrator down to the least experienced end user. Easily accessible with one press of PROG/HELP.
  • Enhanced Caller ID — Allows one-touch automatic message return.1
  • Live call recording — Can record any conversation or personal memo, with moving or copying of any recording to another user’s voice mailbox (see “Voice mail features,” below).
  • Call waiting — Includes helpful display, showing both calls’ Caller ID information, and easy onekey toggling between calls.
  • Conference calling — Includes 24 conference bridges, and a conference may contain up to four parties, so IVX 128 can support six conferences of four parties each or eight conferences of three parties each.2
  • Esi-Dex™ speed-dialing — Calls any number from three separate lists (personal, station and system); uses Caller ID1 information or direct keypad entries.
  • Dedicated overhead paging interface — Allows for paging through an external paging system (requires amplification).
  • 911 alert — Provides immediate line access if any station with line access dials 9 1 1 to report an emergency; sends a message via the serial port indicating the start date, time, station number and end-time of the 911; also sounds a warning tone at the operator station and displays (for example):   911 CALL FROM X102 JOHN JAMES

Voice mail features

  • 16 built-in voice mail ports — These are in addition to the up-to-128 possible call-processing ports; thus, you may build the system to its maximum for call-handling without having to balance voice mail needs versus call-handling needs.
  • Highest-grade voice quality (64-kilobit/second sampling) for voice mail and other storage of voice messages.
  • Eight message-on-hold recordings — Among these are three prerecorded tracks; also supports live input.
  • Off-premises message delivery.
  • Urgent messages — Can deliver higher-priority messages first.
  • Several different mailbox types, including group, broadcast, informational, cascade paging and Q & A.
  • Message Recycle Bin (undelete) — Remembers, and can restore, each mailbox’s 10 most recently deleted messages
  • Quick Groups™ — Makes it easy to leave voice mail messages for several users.
  • Quick Move™ — Automatically moves a message to a designated mailbox.
  • Virtual Mailbox Key™ allows easy monitoring of a second mailbox.

Auto attendant features

  • Six levels, 100 branches — Allows a more caller-friendly answering environment, including a company directory.
  • Virtually unlimited call routing — Includes off-premises transfer, pager notification, more.

Auto attendant features


  • Six levels, 100 branches — Allows a more caller-friendly answering environment, including a company directory.
  • Virtually unlimited call routing — Includes off-premises transfer, pager notification, more.


  • Power Supply

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Rest assured, if you order the wrong items, don't like the model, or just don't need it anymore we accept returns with NO restocking fees. Whether you want something different or just a credit, we have you covered! This policy goes hand in hand with our company culture of delivering outstanding customer satisfaction.

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  • Item(s) must be returned within 30 days from invoice date.
  • Item(s) must be received in original condition preferably in the same packing materials.
  • Item(s) should be securely packed for safe return.
  • The purchaser is responsible for all shipping costs and insurance.


  • Products usually ship within two business days after payment. If you have a rush order, or need an item delivered on Saturday please call to request faster shipping.
  • All products are shipped and delivered on business days.
  • Fixed or free shipping offer does not apply to items shipped on pallets, please call for rates on those items. Free shipping offers only apply to the continental US.


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