My desktop voip ringcentral app (version 188.8.131.52106) doesn't work well with my Plantronics Voyager Focus UC. The headset works perfectly with the RingCentral for meetings, just not with the desktop app for the phone. I have tried with both the dongle and direct bluetooth connection to my Dell XPS laptop running Win 10 (latest version). The connection with direct bluetooth connection is all staticy or breaks up and my customers complain about it. With the dongle, it is excellent, but the app crashes all the time, and does some crazy stuff. The headset works perfectly with my cell phone and through the meetings app, but not with the voip phone app. RingCentral can't seem to fix this issue and it is bad enough that I am considering changing systems (not headsets). Does anyone have a similar situation and perhaps a fix?