FritzCallIndicator displays a notification pop-up in the taskbar for incoming calls from the Fritz!Box.
This utility is heavily inspired by FritzBoxCallMonitor and using its main logic for connecting to the Fritz!Box for receiving calls and kfritz from which the Fritz!Box phone book extraction is used. Kudos to both of the projects!
In addition, FritzCallIndicator can also use Thunderbird address books, CardDAV address books (e.g. from Nextcloud) and online telecommunications directories to reverse lookup the number of the incoming caller. If the number cannot be resolved, the tool will show the country or city of origin of the call (currently only German cities supported). Additionally, FritzCallIndicator can show the history of the incoming calls from the Fritz!Box.