PhoneBurner allows end users to change the way their contact information is displayed on the Contacts page. You can edit the display by clicking the Gear icon to the right of the Contacts page and selecting Contact Manager Layouts.
When searching through the layout options you'll notice two similar options available in the dropdown: Last Call and Last Call Label, Total Calls. These settings are more clearly defined below.
Last Call: With this setting the user will see only the last call made to this specific contact.
Last Call Label, Total Calls: With this setting the user will see the total number of calls made to this specific contact