we have a fax-machine connected directly to a bri port on a cisco3825 gw.
To the pstn we have a e1 pri.
pstn <--E1-- cisco3825 <--BRI-- FAX
Sometimes when we send a fax out to the pstn the receiver just gets a blank page but we see a sending successfull.
I tryed it with the fax on a bri-port with e seperate bri/analog TA and also on a fxs-port in the gw.
The fax call is pots to pots!
Does anyone know what is a possible reason for this behavior?
How can a fax send a blank page? I think the remote site must confirm the recieveing?
What is important to configure?
--> My networkclock settings are fine. No slips!