Specifications

ESI Communications Servers Product Overview
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Introduction
ESI Communications Servers represent an innovative approach to digital and IP communications. The science
behind the switch is sophisticated in its simplicity: Design a platform with the flexibility to support digital functionality
with the ability to be configured as a purely IP-based communications system. It’s ideal for any business that wants
the familiarity of digital telephony, the benefits of full IP-to-the-desktop, or anything in-between.
ESI Communications Servers come in several models, to handle everything from the modest call-handling needs of a
small business to the large, customized needs of the enterprise. Each ESI Communications Server is fully flexible.
That means it can support traditional digital stations, IP-based, or any combination thereof that the customer
requires.
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The largest model, the ESI-1000, supports a maximum system capacity of 1,128 communications ports.
An ESI Communications Server’s backplane
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, switching matrix, and main board are designed to allow for a traditional
digital installation or a VoIP configuration in varying capacities. The non-blocking architecture increases station
capacity to a full complement of up to 816 telephones.
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ESI Communications Servers share many common functions and features. Their innovative architecture integrates
advanced IP functionalities, such as dedicated IP resources, the ability to support multiple Integrated VoIP Cards
(IVCs), up to 96 Esi-Link channels, and remotely installed IP phones.
All ESI phone models, both IP-based and digital, provide advanced ESI features. The supported models are:
• ESI 60IP Business Phone and ESI 60D (digital) Business Phone — The ESI 60IP is available in both Gigabit
Ethernet and 10/100 models. Each ESI 60 Business Phone model includes 48 programmable feature keys, visual
voice mail, an adjustable backlit display, and a full-duplex, high-definition speakerphone.
• ESI 40IP Business Phone and ESI 40D (digital) Business Phone — Each ESI 40 Business Phone model
includes 16 programmable feature keys and an adjustable backlit display.
• 48-Key IP Feature Phone II and 48-Key Digital Feature Phone — Each 48-Key Feature Phone model includes
30 programmable feature keys and a large display.
• ESI 30D (digital) Business Phone — A smaller model intended for lower-traffic users.
• ESI Cordless Handset II — Available in digital, local IP, and remote IP models.
• VIP 7 Softphone — Combines the functionality of a desktop IP phone and the VIP 7 product in one PC-based phone.
All ESI IP phone models are standards-compliant and operate with the customer’s data network to provide highest-
quality voice through Quality of Service (QoS) support. In addition, all ESI desktop IP phone models support Power
over Ethernet (PoE).
An ESI Communications Server provides an ideal, cost-effective upgrade path for several models of ESI’s IVX
®
systems.
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See “Migration capability,” page 18, for more details.
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To support certain ESI Communications Server features — most notably automatic call distribution (ACD) and any IP-related features — the entry-level ESI-50L
must be upgraded to an ESI-50. As a result, a number of descriptions in this document do not apply to the ESI-50L. For a complete comparison of ESI
systems’ features, consult the Technical and Features Comparison Chart (ESI # 0450-0447), downloadable from www.esi-estech.com/Resellers/tech
(password required).
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Except on the ESI-100, ESI-50, or ESI-50L.
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See “Capacity constraints,” page 14.
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IVX E-Class (IVX 128e and IVX 72e) Generation II and IVX X-Class (IVX 128x and 256x).