Using Esi-Link
For only properly equipped ESI Communications Servers, IVX X-Class,
and IVX E-Class systems.
If necessary, consult your System Administrator for more details.
Important:
You are being assigned a special feature not covered in the regular station user guide or tutorial. Be sure to consult the System Administrator for the Location Numbers used by your Esi-Link network.
Overview
Esi-Link is an optional feature that networks multiple ESI telephone systems (or locations) and IP Gateways across an IP-based network. With Esi-Link, a multi-site business can integrate up to 100 of its locations, using the latest VoIP (voice over IP) technologies. Inter-office calls, transferring outside calls, moving voice messages and even accessing outside lines at remote locations are all features you can use over Esi-Link.
For example: if you have an office in Dallas and another in Chicago, Esi-Link makes it possible for someone in the Dallas office to dial an extension in the Chicago office just as easily as if it were an extension down the hall in the Dallas office.
Network numbering
Esi-Link network numbering provides “transparent,” or uniform, dialing across Esi-Link. This means that, regardless of the location from which a user is dialing, the user can dial a number — i.e., the network number — that matches the called person’s three- or four-digit extension number, and the call will be routed appropriately through the Esi-Link network. In essence, the location number (i.e., 7xx) doesn’t have to be dialed, unlike the case with earlier implementations of Esi-Link.1 Therefore, end users in a multi-site environment don’t have to remember six- or seven-digit numbers to call co-workers. They can call anyone, at any other Esi-Link remote location, simply by dialing the person’s regular extension number. Network numbering provides seamless four-digit dialing between Esi-Link locations using a network numbering plan.
Important:
Because your Esi-Link network may include ESI systems not running software compatible with network numbering, the instructions herein (except where otherwise noted) assume the need to dial a Location Key when performing Esi-Link dialing operations. Your System Administrator (or, perhaps, your Certified ESI Reseller) will let you know the correct procedure for your ESI system and your Esi-Link network.
