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APT-3/APT-30/APT-31 (Avaya/Tenovis EHS Cable): How to Install

This procedure explains how to install the APT-3/APT-30/APT-31 EHS cable, which is compatible with the following Avaya/Tenovis phone models:

  • T3 Classic with Interface Adapter
  • T3 Classic with Interface Adapter, TH13, TM13


To Install the EHS Cable

  1. On your base, set your compatibility switch and speaking and listening volumes to the following:
    SettingCS50/CS55/CS70/CS70N/ CS351N/CS361N
    Cable APT-3
    CS500 Series
    Cable APT-30 or APT-31
    Savi Office/700 Series
    Cable APT-30 or APT-31
    Speaking VolumeD66
    Listening Volume333
     Image of SettingsImage of SettingsImage of Settings
  2. Connect your EHS cable to your phone as follows:

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