I use an oldish but fantastic Plantronics headset C052A connected with a APU-76 USB adapter, on my W11 PC. I also use a Jabra desktop speaker on the same PC, USB connected.
Both work 100% perfectly in Teams and Zoom. I can switch between them during a call and they both work reliably, and the headset never skips a beat.
In Ringcentral (Desktop: 184.108.40.20680 Windows (x64) 2023-05-18 07:03:19) the Jabra works 100% OK. The Plantronics headset keeps cutting out. This is random and generally lasts for a few seconds, then sound is re-established. In a 5 min call this happens 4 or 5 times. When it cuts out, the headset "clicks" and both incoming and outgoing sound are muted. There isn't a repeatable pattern to this. This also happens when the Jabra is disconnected.
I have tried downloading and using the Plantronics hub software (https://www.poly.com/gb/en/support/downloads-apps/hub-desktop) but it's no better with or without this running and allowing Ringcentral to manage my headset.
I have also replicated this exact setup on another PC in a different office with the same Jabra but different headset and cable - identical models. This PC is running W10 and exactly the same thing happens.
This must therefore be a problem in Ringcentral, and is very frustrating for myself and callers.
Ideas or solutions very welcome