hi xavier,
please use the socket branch of mISDN and mISDNuser. see www.mISDN.eu use the master branch of lcr. see www.mISDN.eu use the master branch of openbsc. see http://openbsc.osmocom.org/trac/wiki/OpenBSC
lcr is now able to bridge between gsm and sip. for openbsc you don't need any patch, since we use a socket interface between openbsc and lcr now. it is already included in both.
regards,
andreas