[Asterisk-Users] SpanDSP Scrunching incoming faxes

[lists-jmhunter]

I tested SpanDSP as an internal extension, and it worked like a charm.
 Now I am trying to receive faxes from a toll-free nufone DID.  I am
running g.711uLaw in on this line, so no to cause too many problems. 
However I receive the following errors after the fax is finished
receiving:

so the fax comes in 

Executing RxFAX("IAX2[NuFone at 198.22.67.70:4569]/5",
"/root/testfax9.tif") in new stack

then the errors

channel.c:1654 ast_set_read_format: Unable to find a path from ULAW to UNKN
app_rxfax.c:253 rxfax_exec: Unable to restore read format on
'IAX2[NuFone at 198.22.67.70:4569]/5
channel.c:1621 ast_set_write_format: Unable to find a path from UNKN to ULAW
app_rxfax.c:259 rxfax_exec: Unable to restore write format on
'IAX2[NuFone at 198.22.67.70:4569]/5'

I googled around and could not find anything pertaining to this problem.