[Asterisk-Users] Asterisk mangling faxes

[michiel betel]

Hi list,

Faxes come in over an E1 line  (on an TE410P) here and then are sent to 
an analog fax machine attached to a T1 (also on the TE410P) & 
channelbank (CAC1).
Problem is that almost all faxes we send out and receive are mangled... 
either only halve pages or very stretched text etc.
Setup in extensions.conf is just:

exten => ${NN_FAX},1,Answer
exten => ${NN_FAX},2,Dial(Zap/49,80)
exten => ${NN_FAX},3,Hangup

echocancel is off for Zap/49 since the path is TDM only....

Any pointers to where to look??

Thanks, Michiel