I have noticed that when I receive a call from a private or unknown number, the notification does not appear on my call log list. How can I get a private or unknown number call I receive to appear on my calling log list?
Well, it may not register into the log because there is nothing to register. There is little, if any, data you can collect from a private call log.
The other thing is possibly your priority mode on your android. That could cause interference. Maybe. Not for sure on the last part but it is worth a shot. Anyways, just my 2 cents.