The original issue seems to be resolved. But, reading about the changes in voicecall-manager, Ofono, and similar components always make me suspect that they are the root cause of a still present bug preventing to make a call ( Contact app / telephone history - #38 by pawel.spoon ). My question: is telephone stack (ofono), released as open source and somebody with enough knowledge could inspect it - as from this thread I understand that some of you have enough knowledge?