First try to find the exact problem 1. Even though the headset is plugged into the back of the motherboard's mic and headset port. {30 minutes later} {plug in power source. Wear both pieces (If your wireless headset is from Apple) while one of them is not working and keep on opening and closing the case door several times.

Next? Thus, it is not necessary to press the headset button to create the audio link. Modern high-end Bluetooth headsets support AptX, an audio codec compression scheme that offers better sound quality. In the end I ended up buying my users the Logitech optimized for Lync devices. Sennheiser hdr 120 - had them about 5 years - recently replaced the batteries as thought that was the reason they were not holding the charge.  I have updated the firmware and followed your directions but still have the issue. How can I tell the Lync 2013 desktop client to ignore the connect message from the headset to the base?Skype and Bria properly ignore the message from the headset when I connect the headset to the base.  Lync jumps right in and tries to start an voice call complete with dial tone even though our Lync back-end (Office 365) is not configured for PSTN/PBX calling.  I want the headset to connect to the base only, then I will select the app which I want to take the call on.Thank you so far.
I have the Sennheiser RS 135 RF headphones and, same as you, I bought it 5 years ago and all of a sudden it just stopped working. Next…Cradle - unplugged, and same with headphones - removed batteries for the 15 min reset, plugged back in and batteries back in - still both no sound - despite tuning and volume up to wait - nothing.

No an ideal solution but the best we can do at the moment.This is not just isolated to Sennheiser products.We puchased Sennheiser for our call center so I am now searching for a solution to that. {swapped batteries} Nope.

undid the 3 little screws - realigned teh wire, so now batteries sit on the small loops better - retightened - and bingo - i can hear my niece screaming - sorry singing - now. In the upper right corner of the Contacts List in Skype, select More, then Settings . Listen while bending the cable. tom@tdgaffney.comHave you tried selecting a different channel by setting the switch on the bottom of the transmitter and re-tuning the headset? {30-45 seconds later} **white noise** {heavy sigh} F@#$.
This product can be identified through its model number, RS 120.

This will open an audio link to the headset, if the DW base detects audio activity on the USB port of the PC. Windows Won’t Tell You If It’s Using AptX. To overcome this problem, Sennheiser have implemented a function called “Auto Audio Detect” in DW firmware releases 108 and above. Back to Google…Hi y'all. On the ENHANCEMENTS, Bass Boost / EQ etc do not make any difference at all to the sound in any way whatsoever. Much appreciated the helpBeen like this for about a week - last time had to update the driver on my pc - and then it worked great until 3 days later, so could be coincidental or not. The RS 120 offers freedom of movement, stylish design and optimum comfort at an affordable price.Sennheiser hdr 120 - had them about 5 years - recently replaced the batteries as thought that was the reason they were not holding the charge. {checking for lights} Aaaand nothing. They feature a transparent, well-balanced sound with excellent bass reproduction, making them an ideal choice for both hi-fi and TV use. Make sure that your microphone or headset is the Skype default recording device. {switch on headphones} Yes! Neither green or red lights come on the transmitter and the only sound coming out of the headphones is white noise.The Sennheiser RS 120 is an RF wireless headphone system with open, supra-aural headphones. but now touching the batteryJust solved this problem on my system: Take the headphones themselves, turn them over and look closely at the chrome contact area.

Cheers, Paul. Ta, I found Sound / Playback / Sennheiser USB Headset. In my case, I saw hundreds of little hairs (from my head) had collected there, many bridging from one cushion, over the contact area, and to the cushion on the other side. Very annoying indeed !!