Back in March of 2020, Microsoft released a beta version of the Call Records API as a part of the Microsoft GraphTrack this API. This API, which has now moved to general availability, provides information on calls and online meetings that includes usage and diagnostic information.
ProgrammableWeb originally reported the beta release back in March, with Eric Carter noting that “API resources include callRecord, session, and segment. The callRecord Resource represents one peer-to-peer call or a group call. A session exists between a participant and a service Endpoint. A peer-to-peer call contains a single session. A group call can contain one or more session. Within sessions, exist segments. A segment is a media link between two endpoints.”
With the transition to GA, developers can now find information on documentation and support here.