FAX detection not working (FFA and FreePBX 2.9)

Hello,

We have a FreePBX installation (AsteriskNow 1.7) with Digium fax for asterisk installed and configured, though at some point fax detection stopped working. it used to work perfectly in the past, probably due to one of the updates it stopped, and we can’t get it back to work.

When a fax is calling, it just go directly to the regular extension.
Any ideas where to look?

Thanks, Shai.