[Asterisk-Users] Asterisk and HylaFax

[Antony Stone]

On Friday 17 December 2004 16:22, Lee Howard wrote:

> On 2004.12.17 05:42 Sergio Serrano wrote:
> > Hi all,
> >     again I try configure Hylafax with asterisk. I would like
> > configure
> > Asterisk in the next way:
> >         1)An incoming fax go into through X100P
> >         2)Asterisk detects Fax and redirect fax to Hylafax
> >
> >     Is it possible?
>
> Yes, but it may not be as pretty as you like, and it may not function
> as well as you hope.
>
> Using faxdetect in your zapata.conf file will get practically all of
> the faxes coming in to the X100P routed to the "fax" extension.  The
> trick, then, is how to get HylaFAX at that fax extension.

Does there exist any sort of "bypass box" which could be used in the following 
arrangement:

POTS -> X100P -> Asterisk -> TDM400P(FXS) -> Fax machine

Hypothetical bypass box also plugs into POTS line and Fax machine, able to 
switch the X100P, Asterisk and the TDP400P out of the circuit, and just 
connect POTS to Fax directly on some command from the Asterisk PC.

Then Asterisk uses faxdetect to send ringing to the fax machine, waits for 
call to be answered, and sends (RS232?) command to bypass box, allowing fax 
machine to take the original incoming call without all the analogue -> 
digital -> analogue conversion going on.

If such a hypothetical bypass box could also detect remote hangup, and drop 
itself back out of circuit once the call is complete, everything returns back 
to normal ready for the next call to come in.

Electrically it seems like a very simple solution - a 2-pole 2-way relay with 
RS232 control and line-voltage detection (for the automatic switchover on 
hangup), however whether such a thing exists and has appropriate type 
approvals I have no idea....

Regards,

Antony.

-- 
Atheism is a non-prophet-making organisation.

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