Unlimited Auto Call Recorder is a smart tool to keep all calls saved
You can easily manage recorded calls using a simple way to save the important calls and to clear the unimportant ones.
Also you can create an Ignore List to ignore recording contacts for some contacts. In addition, you can also choose some contacts to save their calls automatically to saved list.
When you have issues in recording calls you can try chaining the audio source. This can fix some issues on some unpopular brand mobile phones. Moreover, you can change the output file formats and choose AMR, 3GP, AAC (advanced version from mp3), M4A or WAV.