best solution for sending fax in asterisk

Question

I want to write a script for sending a fax with Asterisk, but many faxes have an error when sending. I use Spandsp for Asterisk and I use gs for converting PDF to TIFF. I think it may be a problem of converting PDF to TIFF. I very try to convert's command for this, such as:

 gs -q -sDEVICE=tiffg3 -dNOPAUSE -dBATCH -sOutputFile=Sample.pdf.tif -f Sample.pdf

---

/usr/bin/acroread -toPostScript -size a4 <filename>
/usr/bin/gs -q -sDEVICE=tiffg32d -sPAPERSIZE=a4 -r204x196 -sOutputFile=<outputfile> -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -dNOPAUSE -dBATCH -f <inputfile.ps>

and I tested anyways into link for converting, but it doesn't work fine, and most of sending fax have issue. Also, I have another problem in answer detection beep in my Asterisk when the trunk with Newrock gateway(analog), this is cause some fax doesn't send correctly!

Answer 1

Check hylafax code. It have working script

I use code like this:

gs -sDEVICE=tiffg3 -sPAPERSIZE=$pagesize -r204x196 -dNOPAUSE -dNOPAGEPROMPT -dBATCH -sOutputFile=dest.tif \
-c save pop -f input.pdf -c quit 

But actualy it doesn't metter. More important how setup your routes/codecs.

Other problem is for sure offtopic here. You have read more books or hire expert.