Step 1 Connect your iPhone and scan it
In this way, you need to have your iPhone at hand and get it connected to the computer at first. Then run the program and stay at the recovery mode of "Recover from iOS Devices". When you see the window shown on the right side, you can directly click on the "Start Scan" button to begin scanning your iPhone for lost call history.
Note: If you connect iPhone 4, iPhone 3GS or iPhone 3G, you also can get into the "Advanced Mode" to get a deeper scan. Then the program will lead you to scan your iPhone.