Easily check the statistic report
Go to Reports >> Statistics
Now you will be able to see the statistics graph report Which basically represents your daily, Monthly, and Yearly Busiest hours with which you can manage your staff and make strategy accordingly.
Also you can add date filter search by start date or end date according to time
You can see the call history graph as well which represents your daily, Monthly, and Yearly Served, Pending and Missed calls.