PC35-RJ9Cisco - PC Dual 3.5mm Headset to RJ9/RJ10 CISCO Phone Adapter

(5 reviews) Write a Review
Use your PC headset with your CISCO office phone with this dual 3.5mm to RJ9 plug VoIP headset adapter!
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Product Overview

  • Convert two 3.5mm plugs to single 4P4C RJ9/RJ10 Cisco headset plug
  • Works great with Cisco VOIP office phones with a RJ9 headset jack
  • Save money by buying PC headsets to use with your office phone's headset jack
  • Reduce clutter with single headset
  • Does not work with RJ11 jack, which is wider than your headset jack (6 positions vs. 4). RJ11 jack is what is in the wall. RJ9, RJ10, RJ22 are what is on your phone handset or headset.
  • Works with mono and stereo PC headsets!
Why buy an expensive headset just for your office phone? Use the Headset Buddy Adapter and your existing computer headset with most Cisco VOIP office phones that have a headset jack.

A money saver for home businesses, call centers, sales people, or anyone who is on the phone all the time, and wants to use a lower cost or more comfortable PC headset. 

This amazing adaptor converts the standard headset 3.5mm mic/audio plugs to a standard RJ9, RJ10, or RJ22 handset plug, allowing you to use your favorite computer/laptop headset with your Cisco IP phone. This adapter is designed for use with headsets that have two 3.5 mm. plugs; one for the microphone and one for the headphones/earpiece(s). The adapter outputs binaural sound for stereo headsets, meaning you will hear sound out of both ears. The adapter cable is approximately five inches long.



For further information about Headset Buddy's Warranty and Shipping & Returns policies select the imbedded links

Warranty Information

This list is not all inclusive. Please look up the specifications on your specific phone to see if it has a RJ9, RJ10, or RJ22 headset jack. If the Headset Buddy doesn't work with a model on this list we will be happy to refund 100% of your purchase plus pay for return shipping

Please let us know if you find more compatible phones or incompatible phone models.

Compatible Cisco Phones

Only compatible with Cisco and Ativa phones.

6921, 6941, 6961

7821, 7841, 7861

7931G, 7940, 7941G, 7942G, 7945G, 7960, 7961, 7961G, 7962G, 7965G, 7970, 7971, 7971G, 7975, 7975G, 7985, 7985G

8811, 8841, 8845, 8851, 8861, 8865

8941, 8945, 8945G, 8961, 8961

9951, 9971

12VIP, 30VIP, CTS 500

Incompatible Cisco phones

7902, 7905, 7910, 7911, 7912, 7920, 7921

Will not work with Polycom, Aastra, Nortel, and most other phones. Additionally, this adapter will not work with Cisco handset plugs or RJ11 jack (wall jack).

Product Videos


(5 reviews) Write a Review

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  • 5
    Great for users of landlines

    Posted by Unknown on 16th Feb 2015

    I have been using the PC Headset adapter 3.5mm to CISCO phone for several years now. It is a great investment for use with regular headsets, or separate speaker and ear phone buds.

  • 5
    Very Simple Solution for Cisco 7940 IP Phone

    Posted by Unknown on 11th Sep 2012

    Our office is very loud and needed a solution for a headset. Purchased adapter and then went out and purchased logitech h250 headset. Easy setup. Great sound and mic.

  • 5
    Awesome - Perfect solution

    Posted by Unknown on 10th Aug 2012

    Awesome - Perfect solution Thx!!!!!

  • 5
    Works as described. Wonderful!

    Posted by Zachary on 23rd Jul 2012

    Looking at the options for Cisco headsets, one is under the impression they have to pay a fortune for a comfortable headset. Not true with this Headset Buddy product. You can use your already existing computer headset (e.g. Koss SB45) on your Cisco phone in a matter of seconds. Calls are crystal clear and a pleasure to have! I personally own other Headset Buddy products and have always been impressed with their performance.

  • 5
    Makes working in a call center bearable

    Posted by PR0XIDIAN on 26th Jun 2012

    I don't care if I'm getting yelled at, or if a customer is so mad that they are cussing me out. Why? Because my headset is comfortable! (Unlike my co-workers). I highly reccomend you pair this with a pair of plantronics gamescon headset. It works GREAT! Very comfortable and fits my call center's phones! :D

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