ESI eSIP Evolution Series

The all-new ESI eSIP Evolution Series™ delivers power, performance, flexibility and scalability for small to mid-sized enterprises up to 2000 users. With a modular design that uses the very latest advanced standards-based technology, the eSIP Evolution Series is engineered for the communications needs of today, while “future-proofing” your investment with the ability to grow along with your organization in the future.


Premium Technology & Features

Users can take advantage of enterprise-grade features that help to improve productivity and efficiency by making routine tasks simple, such as: visual voice mail, dial-by-name directories, conferencing, advanced call handling, call recording, and more!

Power & Performance

The ESI eSIP Evolution Series utilizes the latest powerful technology advancements, including industrial-grade Quad Core processors, T1 DSP voice processors, and extended-life power units with lightning protection. This solution works with SIP/IAX2, PSTN lines, ISDN, T1/PRI, and GSM/3G/4G.

Secure & Reliable

Gain peace-of-mind with advanced fail-over/redundancy, built-in security, monitoring and reporting capabilities as standard. Additionally, the internal firewall/threat detection and support for TLS and SRTP encryption means that your communications remain secure from unexpected threats to your system.

Mobility Made Easy

Take the critical features of your business phone on the road with you by using the ESI eMobile application for smartphones. Access voicemails, contact directories, and call recording features from wherever you may be, and always stay available to receive calls from your most valuable clients!

Awesome Features

  • Quick multi-site and remote user connections
  • Advanced call handling options
  • Built-in call recording capability
  • Conferencing and three-way calling
  • Visual voicemail 
  • web-based managment
  • Powerful add-ons including the ESI eMobile smartphone application

ESI ePhoneX Console

  • Full Duplex HD
  • Gigabit
  • Color Displays 4.3″ & (2) 3.5″
  • 100+ Programable Buttons
ESI 60 Business Phone

ESI ePhone 4x

  • Full Duplex HD
  • Gigabit
  • 3.5″ Color Display
  • 36 Programmable Buttons (4 pages of 9)
ESI 60 Business Phone

ESI ePhone 3x

  • Full Duplex HD
  • Gigabit
  • 2.8″ Color Display
  • 27 Programmable Buttons (4 pages of 7)
ESI 60 Business Phone

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