> I having similar problem. Unfortunately each thread is archive leads to 
> nowhere. I 
read a post in which similar problem was solved by changing rxgain and txgain 
to 15. 
Maybe this would help.
> Does anyone have common problems?
> 
> I was wondering why asterisk - great telecommunication program - has such a 
> weak fax 
support. I am talking about mail to fax and fax to mail. Or maybe I am the only 
one who 
has the problems with it.
> 
> If someone has some experience please help.

In addition to what others have already mentioned, fax support requires
excellent * timing & bus characteristics, and the digium tdm card does not 
provide
that (nor does the older x100p). Those that have spandsp running are primarily
T1/E1 users.

Running fax over sip channels (and networks) also requires rather tight
requirements in terms of latency, jitter, etc, that has been discussed
many times on this list. 


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