Hi Harald,
I've seen teh openbsc.git branch, but I cannot see any branch in libosmo-abis.git. Can you please check if that branch really has been pushed?
the libosmo-abis changes have already been merged, so the csd branch was removed - sorry, I should probably have made a mention to the list about that.
Do you see any reason why the code should / could not be merged? From my quick review, I didn't see any ovious location where it would break existing voice call behavior.
I think my changes to handle CSD channels are a hack somewhat since the whole signalling code would probably need an overhaul to properly support different channel types.
But technically everything should (and actually did, for my tests) work fine for voice calls, too, with these changes.
-Tobias