It would be great to see an option in the RingCentral App for users to generate a diagnostic bundle that they can then email/send to an admin.
The diagnostic data would contain pertinent information relating to the App and environment to help with troubleshooting issues e.g.
User logged in details e.g. extention, DDI
quality test data
Operating System / Platform
App logs (if any)
Note the network settings and quality tests are of particular value. As often issues found appear to be network related.