If the ATA is using a FaxBack server, that server would be most likely be relaying the fax over SIP providers that support T.38 or very clean G711u pass-through to reach the PSTN further up the line, or some traditional telephony (POTS modem bank, T1, etc.).
Regards, *Calvin Ellison* Voice Services Engineer [email protected] +1 (213) 285-0555 ----------------------------------------------- *voxox.com <http://www.voxox.com/> * 9276 Scranton Rd, Suite 200 San Diego, CA 92121 [image: Voxox] On Tue, Mar 17, 2015 at 8:56 AM, Jay Hennigan <[email protected]> wrote: > On 3/17/15 9:29 AM, Oren Yehezkely wrote: > >> This is quite interesting. >> Did you use a special kind of ATA? >> > > Yes, the Audiocodes MP202B with fax-to-https. > > What did you use between the ATA and server A? Was it G711? >> If so how could it work on a 3G connection? >> > > It's sent as https. That's the trick to the whole thing. The fax data is > stored and forwarded as TCP after the fact, hence no worries about moderate > packet loss, jitter, etc. > > What I'm trying to wrap my head around is what goes on the other end. > Something has to receive the https fax, extract the destination number, and > connect to the PSTN (ideally via TDM such as a PRI) to deliver the document > to the ultimate endpoint. Is there an Audiocodes big-brother to the ATA for > this? If not, what are people using? > > In addition, because of the store-and-forward nature, there needs to be a > means of notifying the sending fax of the (delayed) failure. Apparently > some third-party implementations send the failure report as email, but I > can see logistical problems with this in a large office where there are > multiple users of a common fax machine. I would like the option that a > failure report be sent as fax to the originating machine. > > > > _______________________________________________ > VoiceOps mailing list > [email protected] > https://puck.nether.net/mailman/listinfo/voiceops >
_______________________________________________ VoiceOps mailing list [email protected] https://puck.nether.net/mailman/listinfo/voiceops
