Asterisk bristuff-0.3.0-PRE-1s.tar.gz and chan_sip

I just installed the newest bristuffed Asterisk. Everything is fine but I?m not able to establish connections using SIP signalling. Registration of SIP devices is no problem! During compilation everything went fine.

Unfortunately asterisk can only be startet if is disabled in modules conf. Is there a quick solution???

Any idea welcome!!!