Yes, that pause on call feature is pretty cool. If you have the plasma-integration for your browser [1] installed it can even pause your Amazon Prime Video (or Youtube, ...). Assuming you are watching a video on the Amazon website and your phone rings, the video pauses automatically. As soon as the call is over, the video resumes automatically :D

Sadly Spotify does something to not let the browser detect how to control the player :-/ (it works on many websites, just not on spotify.com)

[1]: Firefox: https://addons.mozilla.org/en-US/firefox/addon/plasma-integr...

[1]: Chromium: https://chrome.google.com/webstore/detail/plasma-integration...