Plantronics CS55 Setup To Cisco 7900 Telephone Into Headset Port

plantronics cs55 setup to cisco 7900

Step 1- Plug in the CS55 headset power adapter and let the headset charge for at least 2 hours. After the headset is charged follow the CS55 pairing guide.

step 1

Step 2- Plug in the phone cord from the back of the CS55 charging base into the HEADSET port of your Cisco telephone

plantronics cs55 setup to cisco 7900

Step 3- Ensure all settings are as the image shows below.

plantronics cs55 adjustments

How To Use Your New Plantronics CS55 Headset

  1. Press the call control button on your headset once and release and the Talk Indicator should illuminate green. Your headset is now active.
  2. To dial out or answer/end a phone call press the HEADSET button on your Cisco phone as show in the picture below.

plantronics cs55 call control buttons

cisco 7900

Additional Accessories Others Add With Their Headset

Many customers want the increased productivity of being able to step away from their telephone to grab a cup of coffee or meet with a co-worker, while still being able to answer/end telephone calls. In order to have this feature, you’ll need the Plantronics APC-4 adapter like the image below.


In addition, if you want to reduce distractions customers also add the on call busy light which does exactly that. When you get on a phone call this accessory illuminates red, letting others know that you’re on a phone call and not to disturb!

busy light.png


After following this setup guide your Plantronics CS55 headset should be working great. If you need any further support to get your headset setup and working great, contact us today! 

Also, thousands of customers are taking advantage of our office headset trade in program which further reduces your costs and helps keep these products out of the landfills! Click the image below to get a free quote. 

CTA Trade in v1


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