As part of the Avaya™ Enterprise Class IP Solutions (ECLIPS) portfolio, the DEFINITY® Servers—powered by Avaya MultiVantage™ Software—deliver a full range of global communications capabilities to help your enterprise meet its goals for increased productivity, customer care, and network efficiency. These premier voice and data solutions are designed to simplify your move to a converged communications network while protecting the investments you have in place.

The Avaya DEFINITY servers and associated Avaya™ Media Gateways with Avaya MultiVantage™ Software offer you powerful choices for migrating your business to an integrated communications environment without compromising interoperability, features, applications, scalability, or reliability. You can add Internet Protocol (IP) functionality to your existing enterprise systems, deploy a pure IP solution, or implement a combination of the two—whichever and whenever it is right for your business. And as you migrate, you can realize efficiencies and cost savings by maximizing investments already made in existing voice/data infrastructure and in user/administrator training.

Built on a long tradition of excellence, these servers provide long-term investment protection and prepare you to meet the challenges of the customer economy, by delivering:
:: Complete communications solutions that support your enterprise's evolving voice, data, video, and messaging requirements.
:: System reliability that keeps your business running with minimal downtime.
:: Scalability that easily and seamlessly accommodates your company's growth.
:: Industry-leading security that protects your corporate assets.

The DEFINITY solution is based on an upgradeable processor, a high-level operating system, uniform software, open interfaces, and distributed processing. Each server uses the same software, circuit packs, phones, and wiring. So, you can leverage the equipment you have in place and minimize the cost to upgrade to new capabilities and capacities by reusing your DEFINITY hardware with new Avaya MultiVantage Software enhancements.

There are four DEFINITY servers to fit your needs:
:: Avaya DEFINITY One™ Communications Server
This DEFINITY server is an "all in one" solution with telephony, multimedia messaging, and system management co-located on the same processor. This server is ideal for multisite organizations or branch offices needing 20-60 telephones, with growth potential to 240 telephones.
:: Avaya MultiVantage Software with an Avaya DEFINITY® Server CSI and Avaya™ CMC1 Media Gateway
This solution is ideal for growing companies needing 50 to 500 telephones, and for the satellite offices of large corporations that need cost effective use of the same applications available at headquarters. As sophisticated as the larger DEFINITY servers, this server provides call processing, business applications—such as, voice messaging, shared voice mail, and small call center—networking capabilities, and expert systems for remote diagnostics and self-healing.
:: Avaya MultiVantage Software with an Avaya DEFINITY® Server SI and Avaya™ SCC1 Media Gateway or an Avaya™ MCC1 Media Gateway
This solution is ideal for locations with 250 to 1,000 employees. It can support up to 2,400 stations with a seamless migration to larger Avaya™ Media Servers.
:: Avaya MultiVantage Software with an Avaya DEFINITY® Server R and Avaya SCC1 Media Gateway or an Avaya MCC1 Media Gateway
This solution is a powerful, scalable, reliable, and application rich solution. It is ideal for locations with 1,000 or more employees. It can support up to 25,000 stations, so it can be sized to provide the capacity you need today and well into the future.
The following chart summarizes the features/capabilities of the four DEFINITY Communications Servers: