I followed the getting started Guide but this ends up with the same result if i try to build the generated project under "pjproject/pjsip-apps/src/ipjsua" with the simulator sdk i get: ld: warning: in ../../../pjmedia/lib/libpjmedia-arm-apple-darwin9.a, file was built for unsupported file format which is not the architecture being linked (i386) and 18 other warnings that its not the correct architecture, and yes i used: export DEVPATH=/Developer/Platforms/iPhoneSimulator.platform/Developer export CC=/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.2 ./configure-iphone best regards, matthias