[Asterisk-Users] T.38 fax summary

[Remco Barende]

On Sun, 27 Feb 2005, Lee Howard wrote:

> On 2005.02.27 11:28 Jon Gabrielson wrote:
>>  You wouldn't happen to know how to do this would you?
>>  I currently have a box with both hylafax and asterisk installed.
>>  asterisk handles the dedicated voice lines over a t100p and
>>  hylafax handles the dedicated fax lines over a 4port serial card
>>  with external modems.
>>  It would be really nice if I could have them share the lines
>>  instead of having all the lines dedicated to either one or the
>>  other.  The problem is that the only way to detect whether it
>>  is a fax is for asterisk to answer it first and then there is no way
>>  that I know of to send it on to hylafax.
>
> Sure there is a way.  A couple of ways (at least).
>
> 1) Get a 4-port TDM card and install it into your Asterisk box.  Connect the 
> TDM ports to your modem ports.  Then forward incoming calls on fax DIDs to 
> those TDM ports.
>
> 2) Get another T1 port in the Asterisk box and get a T1 fax modem and do the 
> same thing.  You probably don't have the fax-demand to justify the hardware 
> expense, though.

Interesting idea, how about using one or two HFC-S BRI cards instead (very 
low cost) or even a quad BRI for that?

The pri would be used for the PSTN connection and the BRI cards to connect 
to the faxes. Anyone ever tried it?