The answer to you would be the same as provided already above your post.
These issues need to be logged via your Polycom reseller.
If you struggle to identify them if the unit was purchased via a discounter please provide me with the MAC address of a unit and I can check who this would be.
Without a ticket aka Polycom getting a chance to reproduce and fix if an issue on our end we cannot help anybody.
Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.
Polycom Global Services
Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels. Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's