Hi, I am trying to build mod_opal in FS v1.2stable, using ptlib 2.10.7 and opal 3.10.7 on a debian Ptlib and opal get build with no error, but when trying mod_opal I get Compiling /usr/local/src/freeswitch/src/mod/endpoints/mod_opal/mod_opal.cpp... quiet_libtool: compile: g++ -g -ggdb -I/usr/local/src/freeswitch/libs/curl/include -I/usr/local/src/freeswitch/src/include -I/usr/local/src/freeswitch/src/include -I/usr/local/src/freeswitch/libs/libteletone/src -I/usr/local/src/freeswitch/libs/stfu -fPIC -fvisibility=hidden -DSWITCH_API_VISIBILITY=1 -DHAVE_VISIBILITY=1 -g -O2 -D_GNU_SOURCE -DP_64BIT -DPTRACING=1 -D_REENTRANT -D_GNU_SOURCE=1 -fno-exceptions -I/usr/local/include -I/usr/local/include/opal -I/usr/include/SDL -DHAVE_CONFIG_H -c /usr/local/src/freeswitch/src/mod/endpoints/mod_opal/mod_opal.cpp -fPIC -DPIC -o .libs/mod_opal.o /usr/local/src/freeswitch/src/mod/endpoints/mod_opal/mod_opal.cpp: In member function 'switch_status_t FSConnection::read_frame(const OpalMediaType&, switch_frame_t**, switch_io_flag_t)': /usr/local/src/freeswitch/src/mod/endpoints/mod_opal/mod_opal.cpp:1208: error: 'class OpalCall' has no member named 'IsSwitchingT38' /usr/local/src/freeswitch/src/mod/endpoints/mod_opal/mod_opal.cpp: In member function 'switch_status_t FSConnection::write_frame(const OpalMediaType&, const switch_frame_t*, switch_io_flag_t)': /usr/local/src/freeswitch/src/mod/endpoints/mod_opal/mod_opal.cpp:1225: error: 'class OpalCall' has no member named 'IsSwitchingT38' make[3]: *** [mod_opal.lo] Error 1 make[2]: *** [install] Error 1 make[1]: *** [mod_opal-install] Error 1 make: *** [mod_opal-install] Error 2 Has anyone succeded in building mod_opal ? Should I go with mod_h323 instead ? Thanks for your help