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The details

• One-button access to remote systems — Esi-Link lets you easily communicate with people at your remote locations without having to remember complicated codes. All you have to do is (a.) press a Location Key to gain dial tone for the remote location you want to call, and then (b.) dial the desired extension. That’s all!
  
  Note: If you prefer, you may also direct-dial a location using the three-digit location number your Installer assigns to it. For example, if “702” is the location number for your branch office, dialing 7 0 2 1 1 7 would call extension 117 at that branch.
   
• Toll bypass — With Esi-Link, you may well be able to eliminate altogether your need for expensive dedicated lines interconnecting sites. Esi-Link communicates by using available bandwidth on your existing WAN or the Internet to complete the call, substantially reducing the need for, and associated cost of, public telephone network circuits (whether voice tie lines or dialup). It also can lower long-distance expenses by letting you call from a remote location’s local dial-tone (e.g., if you’re in Memphis and want to call someone in Nashville, just press a key to access local dial tone for your Nashville office’s Esi-Link-enabled ESI phone system so you can place the call as if you actually were in Nashville).
   
• Fully featured, cross-platform phone communication — With some systems, you might have to give up lots of features to enjoy the advantages of VoIP; but Esi-Link lets ESI phone systems share a full range of ESI advanced business phone features that work uniformly across the network.
        Also, an Esi-Link network has cross-platform integration — meaning it can include both traditional and VoIP-based ESI phone systems. That means more of your people can make multi-site calls; it also means they can keep using the ESI phones and systems with which they’re already comfortable.
   

  Got one or more non-ESI legacy systems that you want not only to retain but also  to be part of your Esi-Link network? ESI’s  IP Gateway fills the bill. To learn more, consult the IP Gateway brochure (PDF file).

• Capacity that fits your needs — Some businesses or organizations have only a small number of sites; some have many. Esi-Link connects as few as two — or as many as 100 — ESI phone systems. And a two-site Esi-Link network has all the features of its 100-site counterpart (or a site of any capacity in between).
   
• Publishing — Each Esi-Link-enabled IP PBX (of which there can be up to 100 on an Esi-Link network) can “publish” (transmit) to the network the status of any combination of up to 30 extensions, voice mailboxes and department groups. That means that, when you assign one of these items to a programmable feature key on your ESI phone, the key’s indicator lamp works just as it would if you’d assigned to the key a number within your own local ESI system. One look at the keypad and you’ll know whether Dave in the cross-town warehouse is on the phone (or, for that matter, has set his ESI phone to “do-not-disturb” mode). Clearly, this is one of Esi-Link’s most powerful, time-saving and productivity-enhancing features.
   
• Speed-dialing across the network — The Esi-Dex speed-dialing capability already in place on ESI phone systems gets smarter still with Esi-Link aboard, because now it can also speed-dial extensions at remote locations. Esi-Dex’s new Location Dex feature makes it, well, easy to look up and speed-dial any remote extensions. If you can tap on a scroll key and read a big, clear display, you can use it.
   

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