I know many people ask for that but i searched on the web and I didn’t find that case, thanks to help me!
I have installed spandsp on my asterisk box with instructions on :
When i try to start Asterisk, I get the following error messages…
[app_txfax.so]Jan 23 15:17:12 WARNING: loader.c:325 __load_resource: /usr/lib/asterisk/modules/app_txfax.so: undefined symbol: span_set_message_handler
Jan 23 15:17:12 WARNING: loader.c:554 load_modules: Loading module app_txfax.so failed!
Have a nice day,