Help With Installing the Plantronics APN-91 EHS Cable for NEC Phones NEC phones come programmed with varying settings regarding headsets. Most of the time the APN-91 cable will work without issues. On occasion the audio will work, but you don’t have the ability to answer/hangup remotely. When that occurs, we suggest the following: 1) On the Plantronics wireless headset base (CS500 series, W700 Savi series, & W8200 Savi series) set your compatibility, speaker and microphone settings to the following: Compatibility = A Microphone = 2 Speaker = 3 TECH TIP: On the Savi W700 & W8200 series, the numbers are located on top of each dial 2) Connect the Plantronics APN-91 cable as shown below: For additional assistance NEC can be reached at: https://www.necam.com/ContactUs/Support/ Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website