The user can't place a call, but they can receive calls with no issues. When an outgoing call is placed the bad connection message comes up and the call is dropped. This only happens when the user is working from home, and it happens with the desktop app and web app.
Now the strange part is the RC desktop & web app work fine if the user is working from the office. I have tried uninstalling and reinstalling the app to see if that would help and it doesn't.