I have the Fax Pro module (licensed for 25 years) and I am having a problem with SOME outgoing faxes. I get this error “Far end cannot receive at the size of image”. This can happen when I try to send as little as three pages, with no FreePBX-generated fax cover sheet. The documents are PDF documents from our Ricoh copier (6001).
I saw this (http://issues.freepbx.org/browse/FREEPBX-7140) and see where it says to add “-g1728x2156 -r204x196” But where to I “add” this? Is it some conf file?