- Convert 2.5mm plug to CISCO phone single 4P4C RJ9/RJ10 headset plug
- Save money by buying standard phone headsets to use with your Cisco phone headset jack
- Reduce clutter with single headset
- Does not work with RJ11 jack, which is wider than your handset or 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.
The PH25-RJ9Cisco converts the standard phone headset 2.5mm plug to a standard RJ9, RJ10, or RJ22 Cisco phone headset plug, allowing you to use your favorite phone headset with your Cisco office phone. 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.
Free returns, always!
We have a 30-day, no-questions-asked return policy for all of our products as well as a one-year, 100% Satisfaction guarantee; We’ll replace your Headset Buddy for free within the first 12 months.
Only compatible with Cisco and Ativa phones. Will not work with Polycom, Aastra, Nortel, and most other phones.
Will not work with Cisco handset plug or RJ11 (wall) jacks.
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
Incompatible Cisco phones:
Cisco 7902, 7905, 7910, 7911, 7912, 7920, 7921
Compatible Cisco Phones
6921, 6941, 6961
7931G, 7940, 7941G, 7942G, 7945G, 7960, 7961, 7961G, 7962G, 7965G, 7970, 7971, 7971G, 7975, 7975G, 7985, 7985G
8941, 8945, 8945G, 8961, 8961
Please let us know if you find more compatible phones or incompatible phone models.