To record an active call, tap "More" and select "Start Recording." A blinking red dot will appear next to the call timer. To end the recording, simply "End Call" or select "Stop Recording."
Recorded calls can be listened to by going to the Call History page. Find the call, marked by a red dot, and then press the blue > arrow to go to the call details. Press "Listen to Call Recording" to listen to the call.
You can also manage the recording in iTunes®. When your device is connected, select your device, click the Apps tab at the top of the screen, scroll down to file sharing, then click the Bria icon in the Apps panel. The recordings appear in the Bria Documents panel.