Hi!
Once more, greetings from the Vogtland area.
After reinstalling PhonerLite on my new laptop, I "just" wanted to offer an observation, and I'm still a major admirer of the app.
I am asked to select the audio devices to utilize at the very end of the initial setup process of PhonerLite.  I went with the Plantronics headset (USB connection) as that's how I often make calls.  Unfortunately, following that, PhonerLite would either initialize very slowly (at least 30 seconds), stop responding completely, or leave me with no audible dial tone when I made a call.  I erased all data associated with PhonerLite and uninstalled it when I was unable to access the sound settings in the operating system. This included the directories C:\program files x86\phonerlite\ and C:\user\<me>\appdata\roaming\phonerlite.
After a reboot, everything is back to normal, and that's because I "only" chose the default entries for the audio devices during the reinstallation.
Hopefully this will assist with any future errors that may arise, even though I am unsure of what went wrong.
Just ask if you need anything clarified.
You have worked tirelessly on this endeavor, and I am grateful.
Uwe, please.