Review on Plantronics 209747 22 Headset Passive Reduction by Sue Baccam

I have used this headset for multiple calls on multiple computers with different conferencing packages. The sound quality was consistently good and I haven't had any bad feedback on the sound quality from other parties. I've noticed that some apps start the mic on mute and others don't. I suspect that the problem is not with the headset. I didn't comment (or rate) on the noise cancellation as I use this headset in a quiet place all the time.