Because of problems personally with Windows 10.. .and my customers are not liking Windows 10 licensing... I am in the market to start using LINUX Desktop O/S's instead of Windows soon.... and I'm in the process of making sure that everything that I currently do in Windows can be also done from a Linux Desktop O/S.... for me... and for the customers that I support.
I have found that RingCentral Phone is one of the few apps that I can't find a Linux port for. I have also tried to install the Windows RingCentral Phone using WINE for Linux... and it also fails during the ".NET 4.5" install.
I don't use GLIP or Office360... I just need the RingCentral Phone (SoftPhone) to work on a Linux Desktop PC without having to install or use a Window Operating System to do it.