Devcellent Solutions has a nice track record on BlackBerry 10 with their popular Hub++ app and others. Now they have expanded into the black art of call recording on BlackBerry 10. So far call recorders have been hit and miss though Devcellents Phone Tap Call Recorder seems to work on my Z30. I cannot promise it will work in all situations but it does seem to try to. It can let you record calls automatically on on demand and label recordings with colors and notes. You can also just record part of the call and have it vibrate when it starts and stops. Calls can be made into AMR, WAV, and M4U format though oddly not MP3.
If you live in a country where call recording is legal and need a solution for it check out Phone Tap for $1.99 in BlackBerry World