[asterisk-users] 10.2.1 res_fax : "Unexpected command after page received..."

[sean darcy]

I'm setting up res_fax to use with an iax provider. I'm calling over 
PSTN to the provider. When I stand at our fax machine (Brother), I can 
see the call come in, and it appears to set up correctly. What is odd, 
however, is that asterisk drops off while the fax machine is still 
sending. I've lowered the baud rate to 9600, it's a single page fax. 
After less than 10 seconds asterisk stops receiving the fax, but the 
machine continues sending for another 20 seconds or so.

ReceiveFAX("IAX2/FaxIAX-4579", 
"/var/spool/asterisk/fax/20120317_1820.tif,df") in new stack
     -- Channel 'IAX2/FaxIAX-4579' receiving FAX 
'/var/spool/asterisk/fax/20120317_1820.tif'
     -- Auto fallthrough, channel 'IAX2/FaxIAX-4579' status is 'UNKNOWN'
     -- Executing [h at incoming-fax:1] NoOp("IAX2/FaxIAX-4579", 
"FAXSTATUS: FAILED FAXERROR: Unexpected command after page received 
FAXPAGES: 0 @ bitrate 9600") in new stack

FWIW, ping times from the asterisk box and the iax provider are < 15ms, 
usually around 10ms.

Any thoughts?

sean