If you have calling plans that allow you to make phone calls using Skype for Business, this report will be added to the standard list. Choosing it will take you to the Skype for Business Admin Center, where you can see the phone history for every Skype for Business user in your organization, including service numbers like dial-in meetings or the auto-attendant.
Skype PSTN Usage Details Report
Data is presented starting with most recent calls first, but you can easily use the menu at the top of each column to filter the data for a specific period or by other criteria.
There's a wealth of information presented here. Interesting ...
