Hi, i use working perfectly Asterisk 15.6 and i installed SpanDSP 0.0.6.
fax configured for asterisk. I have a Cisco ATA 187 device that converts digital line to analogue, and it works and I have assigned my number.
my sip.conf settings for fax machine
my extensions.conf settings
exten => 0995,1, Answer
exten => 0995,2, Dial (SIP / 0995)
exten => fax1,1, Dial (SIP / 0995,30)
exten => fax1,2, Congestion
exten => fax1,102, Congestion
I receive a fax from outside to inside fax lines perfectly, but I cannot send faxes from the outside. when I dial the fax number, it called for 10 seconds and outside fax line will ringing after then says “the number you have dialed is not in service”. what is the problem ?
ALSO i tested my local two fax machines working perfectly its sends and receives faxes. and i use res_fax.so + res_spandsp.so modules together.