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APN-91 (NEC EHS Cable): How to Install

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This procedure explains how to install the APN-91 EHS cable, which is compatible with certain NEC phones.
Special Requirements
Canada Support
To Install the EHS Cable
  1. On your base, set your compatibility switch and speaking and listening volumes to the following:
    Setting CS500 Series/Savi 700 Series
    Compatibility A
    Speaking Volume 2
    Listening Volume 3
      Image of Settings
  2. Connect your EHS cable to your phone as follows:
    Image of the APN-91 Setup