
Increase Business Productivity
Sophisticated yet simple, ESI’s on-premise solutions give you the flexibility of both digital and IP functionality. All of your vital business communications features are built-in, not just bolted on, making for a more intuitive and integrated approach to communications.

Supports Digital and IP
Multi-Site Connectivity with ESI-Link
Data Redundancy with Automatic Backups
Stay Connected with Multi-Device Management
Intelligent Caller ID and Call Forwarding
Voicemail with Messaging Options
VIP7 Desktop Telephony
One-Touch Call Recording
ESI Communications Server
Build your entire telecommunications strategy around one of the powerful ESI Communications Servers, knowing that they will easily adapt as your business needs change. The ESI-50, ESI-200 and ESI-1000 can support a traditional business phone system, a fully standards-based IP telephony system, or a combination of both. Regardless of the model, an ESI Communications Server is easy to use and feature rich, allowing your business to communicate like a major player, enhancing your corporate image and projecting a larger organization to your clients and prospects.