The male 2.5mm to male RJ9 adapter cord connects corded or wireless headset systems that have an RJ9 output jack.
The most popular use for this cable is the connect a Leitner wireless headset to corded office phones that have a 2.5mm headset jack. (Please note: this cable will not work to connect Leitner wireless headsets to cordless home phones)
This cable can also be used to connect amplifiers like the Sennheiser Corded Headset Amplifier, Executive Pro systems, the Plantronics M22 (DISCONTINUED), and the Plantronics S12 (DISCONTINUED) to corded office phones via a 2.5mm headset jack.
Please note: This cord will not work with the Sennheiser OfficeRunner, the input is a larger RJ45 size, you'll need the Male 2.5mm to Male RJ45 Adapter Cord instead!
This is a very incomplete list. There are many other phone models with these jacks. If you have questions about compatibility, give us a call at 1-800-HEADSETS (432-3738)!
The male RJ9 jack plugs into your headset amplifier via the jack designated by the diagram of the entire telephone set (both the phone base and handheld receiver – or the abbreviation “TEL” on Executive Pro systems). The male 2.5mm jack plugs into your telephone into the 2.5mm headset jack.
This connector allows the use of amplified headset systems for additional sound control and lets the user keep their phone on the hook while using a headset. This does not work for cell phones with a 2.5mm headset jack. We also would not recommend this connector for cordless phones at this time.
This is the internal support database for Headsets.com. We manufacture and sell office headsets in North America. With over 25 years' experience in the business, we know headsets.
Please use our support database for free headset support, whether you’re a Customer of ours (or not). If you have problems, suggestions, or unanswered questions, please email us at hello@headsets.com (compliments also welcomed 😀)
Looking for office headsets in the UK? Check out Headsets.co.uk.
This is the internal support database for Headsets.com. We manufacture and sell office headsets in North America. With over 25 years' experience in the business, we know headsets.
Please use our support database for free headset support, whether you’re a Customer of ours (or not). If you have problems, suggestions, or unanswered questions, please email us at hello@headsets.com (compliments also welcomed 😀)
Looking for office headsets in the UK? Check out Headsets.co.uk.
Questions/comments?