A Hybrid Approach to Cloud

ESI delivers the reliability, control and connectivity of a complete business phone solution. A hybrid cloud solution enables your business to be more agile, competitive and cost effective. Not ready for a full cloud solution? A hybrid approach keeps you in the game with new communication features plus can reduce the cost of your connectivity by up to 50%. Merge the power of an on-site IP-based phone system with power of SIP connectivity. Gain the benefits of the cloud and manage your phone system locally.


Advanced features to support your growing business

  • Unique call and message handling
  • Built in access control and presence
  • Intelligent caller ID and forwarding
  • Multi-site support

Increase business productivity

  • Automatic call distribution made easy
  • Simplified call handling features including one touch record and Virtual Answer
  • Integrated administration making system management a snap.
  • Stay connected to your office communications while on the go with IP900 Mobile

Reduce your cost

  • Cost effective telephone service using your existing internet connection
  • Save up to 50% on your monthly phone costs
  • Lower operational and capital expenditures
  • Unlimited local and long distance calling

Scale your business with ease

  • Easily expand capacity when you need it - purchase as few as two lines, or as many as you need.
  • Reliability of an onsite system with the all the benefits of VoIP
  • Transition to a full cloud solution at your pace
  • Connect remote locations or virtual workers with ease.

Ensure business continuity

  • Never miss a call even in a disaster situation
  • Automatically route calls to a separate location or other devices
  • Easily access your system from anywhere in order to manage and administer
  • Route calls to your smart device leveraging IP900 Mobile capabilities

Key Features

Unlimited Calling   +

Local and long distance calling is unlimited within United States, Mexico and Canada.

Audio Conferencing   +

Audio Conferencing services for conferences up to 15 participants, enabling you to collaborate quickly and make decisions faster.

Peak Capacity Management   +

Supports bursting to manage peak call volumes.

Inbound/Outbound Calling   +

View caller name and number easily, enabling you to quickly determine how to handle the call.

Call Management   +

Including single-DID (per trunk) and E911.

The most integrated Cloud PBX in the market