While it seems it is not possible for an app to register incoming calls, I wondered if it would be possible to access the call history of the current user?
It looks like there is a Graph API to get information of a specific call by id, I didn't find anything about getting the call history or the last call.
This could be a workaround for our approach: We want to enable the employees to make several notes on incoming calls and reference them with existing items in another web application.
Is there any way to achieve what I'm trying to do?