I recently have tried to install FFA following the appropriate installation directions, adjusting for a 64 bit installation, and asterisk will not load the fax_res_digium.so module. I get an error:
"undefined symbol: ast_fax_tech_register"
As recommended, I'm using the res_fax_digium-11.0_1.3.1-barcelona_64 and have also tried the generic library as well. Same errors.
Interesting, if I try to put the fax_res.so module in the modules directory and/or manually load it, asterisk crashes, so I'm not using that.
I have searched the forums here and all over but am finding no solution so far.
I'm on CentOS 6.5
Asterisk (Ver. 11.12.0)
Would appreciate any insights anyone can offer!