In my experience, some short distortion means that the problem is still there, and that you'll eventually get a more severe distorted call later. Please do report back though . I've been talking with Tigerite about releasing kernel-bfs to Maemo's repositories with only the BFS patches enabled up to v0.330. This because of the following reasons: a) I don't see the distortion being fixed anytime soon b) kernel-bfs has some advantages over kernel-power. For example the -ck patches. (Subjective point) c) BFS 330 is still BFS. Whilst it isn't the latest version, it still offers BFS' (design) advantages over CFS. I've been running this configuration as my stable configuration for several weeks now, without any issues. Expect this release soon.