Check out Documo(formerly known as mFax). We recently just moved over to them 
and have been very pleased with the service and support. They offer Fax to 
Email, ATA and web portal access.


Brian

From: VoiceOps <voiceops-boun...@voiceops.org> on behalf of Aviv Shaham 
<a...@ironsip.com>
Date: Sunday, February 11, 2018 at 8:57 PM
To: "voiceops@voiceops.org" <voiceops@voiceops.org>
Subject: Re: [VoiceOps] Recommendations on Wholesale Fax Services

We have a unique solution - we take regular ATAs such as HT802 or Obi302 and 
make them behave more like how store-and-forward units do.

Both outgoing and incoming faxes are first intercepted in full by the 
softswitch and only then forwarded to their destination. This also lets us 
store copies of the faxes for access via the online portal or send incoming 
faxes strictly as e-fax for those customers that have such features enabled.

Sent faxes go from ATA to softswitch over T.38 (in some cases we enforce G711 
only). Once received successfully (and we have extremely high success rate on 
this leg of the call since no PSTN or some other DID carrier is involved), we 
proceed to transmit from the softswitch to destination fax number over T.38 or 
G711 via reliable carriers with several retries on failures as well as 
adjustments of various settings. In some cases we use third party APIs if we 
can't deliver the fax successfully ourselves. This combination of send methods 
guarantees that if there's a fax machine on the other end (and it's turned 
on..), the fax will be sent one way or another. Our system also "remembers" 
which method worked best for each destination number and will try it first next 
time around.

Once sent (or failed to the point where we are not going to retry anymore - ie. 
busy for an hour, no fax machine detected at all, no answer, etc.), we send out 
a confirmation back to the fax machine or via email/SMS.

On the receiving end, as I said, we intercept the fax on the softswitch and 
upon completion deliver to ATA over T.38 and/or via email as attachment or SMS 
as download link. Customers like this because they can receive unlimited 
concurrent fax transmissions without ever appearing busy to the sending side. 
We simply queue the forwarding to their ATA as needed.

Aviv


On Sun, Feb 11, 2018, at 2:43 PM, Colton Conor wrote:
Like many I wish fax would just die, but it remains to be alive and kicking. 
Today our wholesale provider has a fax to email option, and a HTTPS fax adapter 
option. These are completely separate products today, and you can't use the 
same fax number on both of them. However, our customers really want both 
options combined into one, using the customer's same fax number. They would 
like:

Inbound faxes go to email using fax to email. If desired, they can also make a 
copy go the their HTTPs fax adapter so the fax machine prints it out. The same 
fax number will be used by multiple employees, so hopefully there is no a limit 
on how many email addresses can be used for sending and receiving faxes.

Outbound faxes are sent using the fax HTTPs adapter connected to their fax 
machine. The outbound number that the fax sever uses should be the actual 
clients fax number. Currently the wholesale fax solution we use displays some 
random number when sending outbound faxes from a completely different area code.

Additionally, the client would like a web interface where they can send 
outbound faxes, and download inbound faxes.The web interface should show if the 
HTTPS fax adapter is registered to the service.

Anyone have recommendations? I don't like the idea of using a regular T.38 or 
G.711 adapter as I don't think those work well.

It seems the going retail rate for a fax service is $19.95 per month, so 
hopefully this wholesale solution would be in the $5 to $10 range per month. I 
assume there would be a one time fee for the actual adapter.

Please let me know if you know anything that meets this criteria.
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