Hi @Avner Uzan
You can view the call duration and call origination time in the call history.
You can also click a call record and view the start time and end time of the call on the Detail page on the right.
Also, if you're an administrator, you can open the Teams admin center and click Users. Then select the account you're interested in, and click "Meetings and Calls." From here you can find the start time of the call.
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