Sending a fax through Obi202?
QBZappy:
Ostracus,
Quote from: Ostracus on July 05, 2012, 03:00:04 pm
Callcentric, did you go to the "DID forwarding" tab and set the line to "Fax"?
If this works UserAsdf owes you a beer.
UserAsdf:
The port speed is forced at 115200. The faxmodem is a USR Model 5637.
The instructions at nmu.edu appear to be for pre-configured dialup networks, or "dial up networking" as Windows calls it. I can't seem to find any of those windows on my system since I haven't used dialup since the late 90s. ;D
My DID is set to Fax in Callcentric and has been for a long time. :)
I've also confirmed fax reception to that DID a few days ago by sending a fax from faxzero.com.
UserAsdf:
Obihai responded to my ticket with a solution!
Quote from: Obihai Support
Please make sure that you disabled "SIP ALG" setting in your router.
It turns out "SIP ALG" was causing my problems. Once I disabled this on my router, I was able to send a fax ... from my voip.ms line!
I haven't tried sending via Callcentric (again) yet, but that's okay since I primarily use my voip.ms line for outgoing anyway. ;D
If anyone else runs across this problem and is using TomatoUSB firmware, the "SIP ALG" setting is in Advanced -> Conntrack/Netfilter -> Tracking / NAT Helpers -> SIP
Thanks everyone for all your help! :)
pc44:
Yay Obihai !!! Nice work. :)
This is terrific news... and yet another reminder to the rest of us... to continue to disable/stop/kill/terminate SIP ALG! >:(
Glad to hear this!
pc44
UserAsdf:
I just tried sending a fax via Callcentric and it was necessary to change the priority of the G711 codecs.
With G711u I still had the same problem I described where fax tones were being silenced.
With G711a everything appears to work fine.
Summary:
voip.ms appears to work fine with G711u. Callcentric needs G711a for faxing.
Just more notes for anyone searching this thread at some point in the future. :)
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