<p dir="ltr">Hi John!</p>
<p dir="ltr">I'm not sure why are you using iaxmodem... I use it a few years ago with Asterisk 1.4</p>
<p dir="ltr">In Asterisk v11 fax is managed using res_fax. Please see <a href="https://wiki.asterisk.org/wiki/display/AST/Asterisk+11+Application_ReceiveFAX_res_fax">https://wiki.asterisk.org/wiki/display/AST/Asterisk+11+Application_ReceiveFAX_res_fax</a></p>
<p dir="ltr">You only need download, compile and install the spandsp lib for your distro (fax depend on it) and then recompile Asterisk (if you don't have this resource module already).</p>
<p dir="ltr">We currently receive fax via g.711 ir SIP (via T.38), convert it into PDF and send via email. All with Asterisk v11 and OpenSource software. I can send you our scripts if you want.</p>
<p dir="ltr">Cheers</p>