2 Step Plantronics APP-5 or APP-51 EHS Setup Guide

Setting up your new Plantronics APP-5 or APP-51 EHS cable to your Polycom telephone is quick and simple! 

Are you wondering what the purpose of an EHS cable is? An EHS cable allows you the ability to answer/end calls from your wireless headset when you step away from your desk. Without it, you’ll have to be at your telephone to answer a call, then you can walk away wire free. 

Compatible Polycom phone models:

  • IP 320/321/330/331 (either of these models require an adapter part number 1733N)
  • IP335
  • SoundPoint IP 430/550/560/650/670
  • VVX 300, 301, 310, 400, 401, 410, 500

If your phone model isn’t in this list, contact us today to ensure compatibility. 

Step 1: 

Follow the link below. In order for your new Plantronics EHS able to work, you’ll need to enable the EHS settings in your Polycom telephone.

8 steps to enable electronic hook switch control with Polycom telephones

Step 2:

Follow the image below to properly connect your EHS cable. 

APP-5 setup

Proper settings for CS50/ CS55/ CS70n/ CS351n/ CS361n

Plantronics APP-5 proper settings

Proper settings for CS500 series (C054, CS540, C052, CS510, CS520, C053, CS530)


Proper settings for Savi W700 series (W02, W740, W720, W710, W730)