Record phone all your calls automatically.Call Spy supports recording in MP3 format.Call Spy has unique feature – audio volume gain control.All recordings are made using build-in microphone.It does not record from phone line directly, as most hardware does not support this feature.Call Spy is shipped with convenient record browser, where you can playback, send, delete, lock records.Call Spy is freeware. No ads, no hidden fees, no tricks!