On this page the first thing you'll see is a graph indicating the total call duration spent by each employee. You can select a chosen date range at upper left.
On the left and under the Date Range options you'll see a list of each employee and their total call durations.
If you click on an employee it will open up to show the full call log including Contact name, Phone Number and Total Duration of all calls to each contact.
If you then click on an individual Contact's name, this will open into more detail about each one of those specific calls, as shown below.