Advanced digital and IP communications servers (CS)

Advanced digital and IP communications servers 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.

Digital & IP Support

Each ESI Communications Server — ESI-1000, ESI-600, ESI-200, or ESI-100 — is fully flexible. That means it can support traditional digital stations, IP-based, or any combination thereof that the customer requires. The largest model, the ESI-1000, supports a maximum system capacity of 1,128 communications ports.

An ESI Communications Server’s backplane, 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.

Feature-Rich

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 Feature Phones.

All ESI Feature Phone models, both digital and IP-based, provide advanced ESI features. ESI Cordless Handsets come in two sizes, each of which has three models to provide more connection choices — Digital, Local IP, and Remote IP. The 48-Key IP Feature Phone II supports Power over Ethernet (PoE). The optional VIP Softphone combines the functionality of a 48-Key IP Feature Phone II and the VIP Professional product in one PC-based phone.3 All ESI IP Phones are standards-compliant and operate with the customer’s local area network to promote Quality of Service (QoS).

System Capacities

System Configurations

	ESI CS 1000 – The science behind ESI Communications Servers is sophisticated, yet simple: each supports both digital functionality and IP-to-the-desktop, in any desired combination. 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 ESI CS 1000 Brochure
	ESI CS 600 – ESI Communications Servers come in several models which vary primarily in capacity. Chances are that one will be just right for your workplace’s particular communications needs. Total stations – 408 IP stations – 408 Digital stations – 336 Analog stations – 188 Call-processing ports – 624 Central Office (CO) lines – 168 Digital line cards (T1/PRI) – 6 Voice mail ports – 32 ESI CS 600 Brochure
	ESI CS 200 for Converged Communications can be: a traditional digital business phone system; a fully standards-based IP telephony system; or any mix of the two. The choice is entirely yours, and the mix can easily change when your needs do. Like other higher-end ESI business telephone systems, the ESI-600 Total stations – 192 IP stations – 192 Digital stations – 168 Analog stations – 56 Call-processing ports – 300 Central Office (CO) lines – 84 Digital line cards (T1/PRI) – 3 Voice mail ports – Up to 24 ESI CS 200 Brochure
	ESI CS 100 Whether you have many users and outside lines, just a handful of each, or something in-between, an ESI Communications Server grows with you. For modest call-handling needs, a smaller ESI system may do. From there, ESI’s larger platforms allow additional growth and customization. Total stations – 84 IP stations – 72 Digital stations – 48 Analog stations – 28 Call-processing ports – 108 Central Office (CO) lines – 42 Digital line cards (T1/PRI) – 1 Voice mail ports – 8 ESI CS 100 Brochure