Hope you are doing well.
Please use below resource to set subscription for call recordings.
communications/callRecords
Please refer the links for more details: https://learn.microsoft.com/en-us/graph/api/subscription-post-subscriptions?view=graph-rest-1.0&tabs=http
https://learn.microsoft.com/en-us/graph/api/event-get?view=graph-rest-1.0&tabs=http
Please note that, you will get the notification after a call or meeting in Microsoft Teams. Please refer the link for more details on latency to expect between an event happening in the service and the delivery of the change notification. https://learn.microsoft.com/en-us/graph/webhooks?tabs=http#latency
Hope this helps.
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