This is merely a historical archive of years 2008-2021, before the migration to mailman3.
A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/OpenBSC@lists.osmocom.org/.
Mike Haben michael.haben at btinternet.com(Hopefully) last patch attached - now sends the correct op-code in response, works with all 6 phones I have tried. Interesting that 5 out of 6 were happy with a completely different op-code and payload... Mike H.