[ "$EXTERNAL_FREETZ_LIB_libosip2" == "y" ] && EXTERNAL_FILES+=" $FREETZ_LIBRARY_DIR/libosip2.so.6.2.0" [ "$EXTERNAL_FREETZ_LIB_libosipparser2" == "y" ] && EXTERNAL_FILES+=" $FREETZ_LIBRARY_DIR/libosipparser2.so.6.2.0"