[asterisk-users] IAX2 and Faxing

[Davis Sylvester III]

Can someone tell me how to get faxing to work with an IAX2 remote client?

I have two customers both are connected via Digium's ATA's S101I both 
can place and receive calls without any problems.  However when they 
connect there line to a fax machine it never connects to the remote fax 
machine.  They place a normal POTS line and all faxes fine.

Any light is appreciated.