Thank you for your question.
DSL terminal adapters are digital devices that communicate with
routers and similar networking equipment. Fax machines are analogue
devices that use variations in current to send images. There is no
physical way for a DSL terminal adapter to communicate directly with a
The Internet services you mention will use a computer attached to a
fax machine to convert a digital image or document, into an analogue
image. Any product providing such a feature will have to do something
similar in one way or another. A terminal adapter manufacturer could
"cheat" and package an analogue fax machine into a DSL terminal
adapter thus permit transparent faxing. But this would still be
analogue, slow, would transmit over the phone line and fully occupy
the phone line.
In short, these are incompatible technologies. A conversion has to
take place from a digital signal to an analogue signal. Fax over DSL
is called email :)
I hope this answers your question. If something is unclear or if you
want more information please do not hesitate to ask for
Fast Guide to DSL
Clarification of Answer by
15 Dec 2003 15:00 PST
The future is to phase out fax. Because it is slow, unreliable and
costly. It requires paper and most of the time ink. The trend is to
move towards digital document transmissions.
More and more companies are using email to communicate and dedicated
services as you mention, that can send a fax from a digital document.
Panasonic has developed an intermediary technology, which can send
faxes over the Internet, to similar Panasonic machines. This still
involves using the fax as a modem with an integrated scanner. Here is
more detailed information into that technology:
Panasonic's Fax Gateway Software Transforms Internet Fax Machines Into
Fully Functional, Robust LAN Fax Servers
To telco's, there is no difference between phone and fax service. To
them they use the same medium and thus license them in the same way.
Here is another interesting technology:
Esker Fax--The Integrated Fax Server Solution
The move is to use such services:
Notice that the costs are really low. They can offer such low costs by
having a receiving fax in multiple countries, sending the data over
the Internet, then have an emitting fax at the location.
I hope this helps. If you require any more clarifications or further
information, please do not hesitate to ask.