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Home > ESI



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1 - 93 of 93 products  

ESI 12-Button Desi, 10-Pack... learn more

Price: $23.99
Key Features: Compatible with: ESI IVX Charcoal New Style This handset fits the 12, 24, and 48 key phones New ... learn more

Price: $12.99
Key Features: ESI IP 48 Key H IPFP Charcoal Phone Integrated Headset Jack Includes: Base Handset New line... learn more

Price: $99.00
Key Features: ESI-50 includes a built-in 482 port card and IVC hardware One expansion slot for another 482 card. Simply activate the... learn more

Price: $699.00
Key Features: ESI-50 includes a built-in 482 port card and IVC hardware, along with one expansion slot for another 482 card Simply... learn more

Price: $699.00
Key Features: Mnfr Part #: 5000-0104 ESI IVX128 612 Port Card Works with the X-Class (sleeve required) and E-Class Gen I... learn more

Price: $99.00
More Information: Provides an additional 6 CO lines, 8 digital stations, and 4 analog ports to an E-Class KSU.... learn more

Price: $349.00
Key Features: ESI DP1 16 Button Display Phone Charcoal Speakerphone with an LCD Display 16 programmable keys Voicemail... learn more

Price: $69.00
Key Features: Refurbished Allows two additional expansion cards to be installed Compatible with: IVX IVX... learn more

Price: $49.00
Key Features: Mnfr. Part #: 5000-0290 48 Key Digital Feature 30 Programmable Keys Dedicated Voice Mail... learn more

Price: $59.00
Key Features: ESI IVX S-Class Gen II 482 PC 4x8x2 Expansion Card For the 56S system (IVX 56s supports up to 16 phone lines, up to... learn more

Price: $399.00
Key Features: E2 DLC 12 PC - Provides either a T1 interface supporting 24 DS0 channels or an ISDN PRI interface supporting 23 B (bearer)... learn more

Price: $399.00
Key Features: ESI 900MHz Compact Digital Cordless Phone - Small Approx Talk time 7 hrs Approx Range is 150 to 200 feet... learn more

Price: $361.99
Key Features: Provides the same great ESI phone capabilities as does the 48-Key Digital Feature Phone, yet with the additional advantage... learn more

Price: $199.00
Key Features: Provides the same great ESI phone capabilities as does the 48-Key Digital Feature Phone, yet with the additional advantage... learn more

Price: $149.00
Key Features: The ESI-1000 and ESI-600 share the same Expansion Cabinet Maximum Expansion Cabinets: ESI-200 - 1 Expansion... learn more

Price: $349.00
Key Features: The ESI 600 System for Converged Communications can be a traditional digital business phone system, a fully standards-based... learn more

Price: $1,311.99
Key Features: Mnfr Part #: 5000-0419 CS 684 - Connects up to six analog loop-start CO lines, eight Digital Feature Phones and four... learn more

Price: $249.00
Key Features: Only connects up to 12 Digital Feature Phones This card provides 12 Digital station ports and no CO... learn more

Price: $149.00
Key Features: CS DLC 12 PC - Provides either a T1 interface supporting 24 DS0 channels or an ISDN PRI interface supporting 23 B (bearer)... learn more

Price: $369.00
Key Features: The CS-6ALC is similar to the CS-612 and E2-612,but connects only up to six analog loop-start CO lines(no... learn more

Price: $269.00
Key Features: CS DLC PC - Provides either a T1 interface supporting 24 DS0 channels or an ISDN PRI interface supporting 23 B (bearer)... learn more

Price: $199.00
Key Features: Connects up to 12 analog devices (only), such as fax machines and cordless phones This card uses 12 station ports and... learn more

Price: $399.00
Key Features: The ESI-200’s Expansion Cabinet is unique to that model, while the ESI-1000 and ESI-600 share the same Expansion... learn more

Price: $399.00
Key Features: CS IVC (Intelligent VoIP Card) - Supports standards-compliant IP telephony service and features, including VoIP to the... learn more

Price: $329.00
Key Features: CS IVC (Intelligent VoIP Card) - Supports standards-compliant IP telephony service and features, including VoIP to the... learn more

Price: $319.00
Key Features: Mnfr. Part #: 5000-0499 24 keys Speakerphone 12 programmable buttons Dedicated buttons for... learn more

Price: $69.00
Key Features: 48 Key H DFP BL Speakerphone is specifically designed for users who are very active The ESI 48-Key Phone has a large... learn more

Price: $79.00
Key Features: The RFID Reader is a wall-mounted device, approximately 5 1/2" high by 3 1/2" wide Includes a CALL key for... learn more

Call for Pricing
Key Features: ESI 60IP Business Phone, in Gigabit Ethernet and 10/100 Ethernet versions Provides the same great ESI phone capabilities as... learn more

Price: $99.00
Key Features: ESI 60IP Business Phone, in Gigabit Ethernet and 10/100 Ethernet versions Advantage of "one-wire" VoIP... learn more

Price: $99.00
Key Features: ESI Communications Servers represent an innovative approach to digital and IP communications The science behind the... learn more

Price: $699.00
Key Features: ESI Communications Servers represent an innovative approach to digital and IP communications. Ability to be configured... learn more

Price: $699.00
Key Features: ESI 012 PC Refurbished ... learn more

Price: $169.00
Key Features: ESI AP3389P 24VAC, 7.5 AMP, 2 Pin Power Supply New ... learn more

Price: $239.00
The ESI power supply is a 6v DC adapter for use with the 48 key VoIP phones. Key Features: Provides 6V DC Power Required for... learn more

Price: $39.00
Key Features: ESI IVX 3 Amp Power Supply Refurbished ... learn more

Price: $76.99
Key Features: The 12-Key Digital Feature Phone is designed for occasional users and for areas such as lobbies, warehouses and waiting... learn more

Price: $59.00
Key Features: The 24-Key Digital Feature Phone is perfect for lower-traffic users who need access to system features but require less... learn more

Price: $109.00
Key Features: ESI 48 KEY DFP H TAPI Display Spearkphone Built-in headset jack Refurbished ... learn more

Price: $99.00
Key Features: 48 Key H DFP Telephone The ESI 48-Key Feature Phone is specifically designed for users who are very active The... learn more

Price: $129.00
Key Features: The 60-Key Expansion Console connects quickly to most current ESI desktop phones (on the IP Server 900 and ESI... learn more

Price: $89.00
Key Features: ESI Communications Server w/ ESI 600 Base Cabinet and ESI 600/1000 Expansion Cabinet Mnfr. Par #: 500-0405... learn more

Price: $349.00
Key Features: ESI Communications DKT-TAPI 16 Button Display Phone Condition: Refurbished ... learn more

Price: $69.00
Key Features: 48 Key RMT IPFP Charcoal Telephone The ESI 48-Key RMT IPFP Phone works in both your local network (LAN) and remotely... learn more

Price: $99.00
Key Features: ESI IP 48 Key H IPFP Charcoal Phone Integrated Headset Jack Includes: Base Handset New line... learn more

Price: $99.00
Key Features: ESI S-Class Generation II All In One Digital Phone System ESI provides big-system features into the small-business IVX... learn more

Price: $299.00
Key Features: ESI EKT-A 16 Button Analog Display Phone Charcoal The EKT-A is a multi-line analog telephone for the ESI IVX Classic... learn more

Price: $49.00
Key Features: ESI-100 includes a built-in 612 port card and IVC hardware, along with one expansion slot for another card Both... learn more

Call for Pricing
Key Features: CS IVC (Intelligent VoIP Card) - Supports standards-compliant IP telephony service and features, including VoIP to the... learn more

Price: $239.00
Key Features: Mnfr. Part #: 5000-0592 Digital Business Phone with 3-Lines and 16-Programmable Buttons. Backlt... learn more

Price: $99.00
Key Features: Mfg Part# 5000-0498 CS-DLC82- (ESI-50 only)Provides an ISDN PRI interface supporting 23B (bearer) channels, one D... learn more

Price: $599.00
Key Features: ESI Communications Server G2 HS 600 PC Refurbished ... learn more

Price: $299.00
Key Features: This is the cabinet from the Demo Kit (5000-0524) this is for used for demonstration purposes only and cannot be used as a... learn more

Price: $899.99
Key Features: ESI/NorVergence CCS 48 FP w/HSJ Charcoal Telephone Same as H DFP model if we are out of stock Note:NorVergence... learn more

Price: $99.00
The 48 Key FD DFP Full Duplex Speakerphone is specifically designed for active users. The ESI 48-Key Phone features a large backlit display. The... learn more

Price: $119.00
Key Features: 48 key DFP telephone Speakerphone 30 programmable keys Dedicated buttons for help, record, and... learn more

Price: $49.00
Key Features: Compatible with: ESI DP1 phones and EKT-A Condition: New ... learn more

Price: $12.99
Key Features: ESI EKT Handset Charcoal For use on EKT systems only New ... learn more

Price: $12.99
Key Features: ESI EKT-TAPI 16 Button Display Phone Refurbished ... learn more

Price: $59.00
Key Features: ESI IP 48 Key IPFP Charcoal Phone Includes: Base Handset Power Adapter 6v New line cord New... learn more

Price: $89.00
Key Features: IVX 128 (IVX stands for Integrated Voice Exchange, while 128 indicates the system’s maximum number of... learn more

Price: $429.00
Key Features: ESI IVX 128 PLUS Digital Phone System w/expansion & 612 Port Card installed Condition: Refurbished ... learn more

Price: $360.00
Key Features: ESI IVX 20 Plus Cabinet Hard Drive Model: MHR2010AT (PN: CA06062-B13200DX) Refurbished ... learn more

Price: $279.00
Key Features: ESI Original analog 4x8 expansion card Expands your IVX system by 4 Lines, 8 Stations Condition: Refurbished ... learn more

Price: $89.00
More Information: Condition: Refurbished ... learn more

Price: $129.00
Key Features: ESI S-Class Generation II All In One Digital Phone System ESI builds big-system features into the small-business IVX... learn more

Price: $299.00
Key Features: ESI IVX 64 Key EC 64 Button DSS Console Charcoal Condition: Refurbished ... learn more

Price: $69.00
The IVX 128 6 X 8 X 4 expansion card provides ports for 6 C. O. Lines, 8 phone stations and 4 analog station ports.... learn more

Price: $299.00
Key Features: Condition: Refurbished ... learn more

Price: $189.00
The A12 PC Card provides 12 analog station ports for devices such as single line phones, faxes and modems. The A12 PC card operates on ESI IVX... learn more

Price: $199.00
Key Features: ESI IVX C-Class Gen 2 360 Expansion Port Card 3x6x2 Adds 3 CO x 6 Digital Stations to an existing ESI IVX C Class... learn more

Price: $249.00
ESI IVX C-Class All-In-One Digital Phone System w/ Power Supply Key Features: Full integration With an IVX C-Class system, just... learn more

Price: $229.00
ESI DLC12 card provides expansion for 12 digital station ports and either a T-1 or PRI. On the IVX 128 it may only be configured as a T-1. On the... learn more

Price: $199.00
Key Features: To expand an IVX 128e system beyond Base Cabinet I (and its Expansion Cabinet), connect Base Cabinet II via ribbon cable to... learn more

Price: $369.00
Key Features: E2-612 Card - 6 lines x 12 digital Condition: New ... learn more

Price: $499.00
Key Features: ESI E-Class GEN II E2 612 Port Card Condition: Refurbished ... learn more

Price: $191.00
Key Features: ESI IVX E-Class Generation II Phone System 70 Hour Memory Module RS-232C DB9 serial port Built-in 33.6 Kbs... learn more

Price: $299.00
Key Features: 70 Hour Memory Module RS-232C DB9 serial port Built-in 33.6 Kbs modem for remote access External... learn more

Price: $229.00
Key Features: 70 Hour Memory Module RS-232C DB9 serial port Built-in 33.6 Kbs modem for remote access External... learn more

Price: $361.99
Key Features: The IVX 128 6 X 8 X 4 expansion card provides ports for 6 C. O. Lines, 8 phone stations and 4 analog station... learn more

Price: $599.00
Key Features: The IVX 128 6 X 8 X 4 expansion card provides ports for 6 C. O. Lines, 8 phone stations and 4 analog station... learn more

Price: $259.00
More Information: Mnfr Part #: IVX E2 D12 Adds 12 Digital Extensions Compatability: ESI IVX E-Class Gen 1 ESI... learn more

Price: $219.00
Key Features: If equipped with an LNC, the ESI system supports up to 12 ESI IP Feature Phones Each IP Feature Phone looks and works... learn more

Price: $399.00
Key Features: Compatible with: ESI EKT Phones ESI DKT Phones ESI DP1 Phones Condition: Refurbished ... learn more

Price: $26.99
Key Features: If equipped with an LNC, the IVX ESI system supports up to 12 ESI IP Feature Phones Each IP Feature Phone looks and... learn more

Price: $249.00
Key Features: Port cards for the original IVX provide for configurations in multiples of 4 loop start lines by 8 stations Each port... learn more

Price: $99.00
Key Features: ESI IVX REMOTE PKT IP PHONE Refurbished ... learn more

Price: $111.99
Key Features: ESI IVX REMOTE PKT IP PHONE Refurbished ... learn more

Price: $99.00
Key Features: ESI IVX S-Class Gen I 482 PC 4x8 Card For the 42S system (The IVX 42s system tops out at 12 lines, 24 stations, and... learn more

Price: $199.00
Key Features: ESI Large Heavy-duty Digital Cordless Handset 900 Mhz Approx Range 350 to 400 feet (depends on... learn more

Price: $599.00
Key Features: CS-612 - Provides circuits to connect up to six analog loop-start CO lines and 12 Digital Feature Phones Ground-start... learn more

Price: $259.00
Key Features: This card is used to mount IVX cards into the X-Class system Condition: Refurbished ... learn more

Price: $39.00

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