I can’t think of how else to describe this, but I know it used to work although that may have been when it was Connect.
I get junk calls all the time, don’t we all, and I would go into the desktop app and edit the name in the call log to be e.g. “Don’t answer this”, or “spam”, or whatever. Then the next time they call I would see the phone number and name show in the pop-up and know not to answer it.
This doesn’t appear to work any more. If I right-click on an entry in the Call Log I only see “Cut, Copy, Paste”
I was not explicitly adding them as a contact, although if you told me it was doing that behind the scenes I wouldn’t argue with you. Speaking of Contacts, it only shows My Favorites and there’s no option to show anything else.
Running 4.0.3 of the desktop app.