asterisk users - Apr 2005 - Asterisk and HylaFAX integration

Has anyone done work on this topic? We have an 8-line fax system using a Diva 
Server card that I'd like to get working using one of the kapejod's
QuadBRI
adapters :)

i.e. is it possible to keep the HylaFAX submission and queue management, but 
replace the existing backend of a TTY-based client with Asterisk's t38modem
/
spandsp?

I've been down the 'capi4hylafax' route before and it was very
depressing so
would like to avoid that...

Cheers,
Gavin.

On Tue, 5 Apr 2005, Gavin Hamill wrote:
> Has anyone done work on this topic?
I guess it depends what you mean by "integration".
> We have an 8-line fax system using a Diva 
> Server card that I'd like to get working using one of the kapejod's
QuadBRI
> adapters :)
I successfully run a HylaFAX server with a Patton 2977 connected through a 
Digium TE405P.
> i.e. is it possible to keep the HylaFAX submission and queue management,
but
> replace the existing backend of a TTY-based client with Asterisk's
t38modem /
> spandsp?
Well, for one thing, t38modem comes from OpenH323, not Asterisk, and it 
cannot be used with Asterisk as Asterisk does not yet support T.38.

As for using spandsp's txfax/rxfax to replace HylaFAX's 
faxgetty/faxsend... it should be possible to write a "wrapper" script
and
then set HylaFAX's "SendFaxCmd" to point to your wrapper script
instead of
the faxsend binary.  The wrapper script would need to trigger txfax 
via a .call file in the Asterisk spool directory.  There will be some 
complications with regards to return status and requeuing of jobs (which 
is why I've not attempted this myself).

As for replacing faxgetty... that should be fairly straight-forward by 
simply making rxfax dump the received faxes into the HylaFAX recvq 
directory.

Lee.