asterisk users - Sep 2006 - fax over ip

I have an trixbox system setup, and all my phones are IP based, different
Grandstream phones to be exact. I have some fax machines that are still around,
using analog lines of course.
   
  I've read a little into FOIP and the changing of the signals form
t30(traditional fax machines) to t.38 ( ip faxmachines).
   
  From what I understand, it's alot like voip, with origination and
temrination. Can someone recommende, i guess, a FOIP provider? someone that can
provider the gateway services?
   
  Also, how am i supposed to get my fax machine onto my ethernet network? i
assume it needs some kind of Aanalog Telephone Adapter, just like with VOIP.
   
  Any info is appreciated , this is still clewgy to me.
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Christopher,
> Also, how am i supposed to get my fax machine onto my ethernet network? i
> assume it needs some kind of Aanalog Telephone Adapter, just like with
VOIP.
You need a T.38 capable ATA. There are a few but not too many. I
believe the Grandstream ATAs have T.38 support or will have it
("Support transparent Fax pass-through and in the future T.38
(pending)"). The Linksys/Sipura 2100 can definitely do it -- it works
well for me :).

Then you need a T.38 capable ITSP. Some are listed on
http://www.voip-info.org/wiki/view/VOIP+Service+Providers+T.38 but I
don't have experience with any other them.

T.38 pass-through support in Asterisk is available as a patch on the
bug tracker for 1.2. Not sure if it made it into the 1.4 beta version
or not, but on 1.2 it works OK for me.

--Luki