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The ESI 45 SIP is a mid-size display and sixteen programmable feature keys encourage users to customize their personal feature sets to increase productivity and efficiency.

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ESI 45 Session Initiation Protocol Business Phone

Features and Specs

  • Sixteen (16) Programmable Keys
  • Dedicated Voicemail Key
  • Dedicated Help Key
  • 3-line, 56-character Adjustable Backlit Display
  • Full Duplex Speakerphone
  • Web Based Dashboard
  • Integrated RJ9 Headset Jack
  • Direct Inward Dial x 2
  • Gigabit Ethernet Network - Power Over Ethernet (POE)

ESI 45 SIP User Guide

Using Your Phone

Key System Features

Personalizing your Phone

Adjusting Device Settings

Web Based Programming

Compatible Systems

ESI ePhone4 Session Initiation Protocol Business Phone

ESI eCloud PBX

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