Set an openBSC with demo BTS

Hi, I'm trying to set an "OpenBSC network-in-the-box (NITB) mode" using a BTS demo/simulator, but couldn't find any good instructions guide for it. Any help will happily accepted. I followed this guide: http://openbsc.osmocom.org/trac/wiki/Building_OpenBSC and tried to use this simulator instructions: http://openbsc.osmocom.org/trac/wiki/simulation Best regards, Arik