Record Calls on Nokia N900 Phones

Wondering how to record calls on Nokia N900 device? And all that for free?

An app has been launched. Called Recaller, this app provides a widget to record all audio, be it as Dictaphone, Voicecalls or System sounds (FM and internet radio, game audio etc.) in various formats (e.g. AAC, 1 MB/min).

Files are stored in File managers and can be played back.