Sending fax problem
azrobert:
You can try this:
http://www.obitalk.com/forum/index.php?topic=6625.msg41922#msg41922
Edit:
This is a very old post and I don't know if it still applies.
SteveInWA:
Quote from: azrobert on June 09, 2019, 04:22:20 pm
You can try this:
http://www.obitalk.com/forum/index.php?topic=6625.msg41922#msg41922
Edit:
This is a very old post and I don't know if it still applies.
I specifically did not suggest any such fiddling, because it doesn't work. Don't rely on a six-year-old post, especially if you read through to the bottom of that discussion and saw that it doesn't work as of that date of that last post.
In general, these failures occur when the ISP connection, or one or more of the carriers in the path, are unstable. The fax protocol was designed for old-fashioned POTS lines, not for VoiP. That's why the T.38 standard was developed, but it was largely a flop, due to lack of implementation by fax machines or terminals.
Thomike:
Thank you to everyone for their technical contribution.
I understand that this IP faxing technique is not yet fully developed and I do not appreciate Polycom Obihai's commercial communication at all, which has suggested that it is operational.
I suspected my 4-year-old Brother multifunction printer and I was considering using a recent USB 56K External Dial Up Voice Fax Data Modem Windows 10 connected to the OBi200, but what I read is not in favor of this formula.
In Europe, a few years ago, I used a lot of Internet boxes providing 2 telephone lines without any problem. It was telephony and fax over IP. I am very surprised that the Polycom OBi200 system does not allow the same service for communication by fax.
SteveInWA:
This has absolutely, positively nothing whatsoever to do with the OBiTALK device's capabilities or quality.
It is caused by a less-than-perfect Internet service provider connection, or by other telephone-network factors, that are causing dropped packets or related issues. It doesn't matter which ATA you are using. It either works or it doesn't.
Digital telephone service provided by cable or fiber uses a private, managed network, vs. the public Internet. It is a "cleaner" and more direct connection into the telephone network, and it works great for faxing and security alarms. You can't duplicate that level of quality via the public Internet, unless you have a high-quality connection.
I have FiOS (fiber optic) Internet service. I can reliably send faxes, using my HP OfficeJet multi-function machine, over Google Voice. I can't reliably send faxes over some other VoIP service providers.
Don't blame Polycom for this. It's not their fault. You'd have the same problem using some other brand of ATA.
azrobert:
Quote from: SteveInWA on June 09, 2019, 05:56:03 pm
I specifically did not suggest any such fiddling, because it doesn't work. Don't rely on a six-year-old post, especially if you read through to the bottom of that discussion and saw that it doesn't work as of that date of that last post.
Just because it didn't work for that user doesn't mean it won't work. Here is a 2 1/2 year old post where it did work. It will only take a few minutes to configure, so why not try.
http://www.obitalk.com/forum/index.php?topic=12259.msg78259#msg78259
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