[Asterisk-doc] (Fwd) Re: [Asterisk-Users] Fax Detection

Scott Edwards asterisk-doc@lists.digium.com
Thu, 8 Jul 2004 17:55:27 -0600


On Thursday 08 July 2004 04:43 pm, Philipp von Klitzing wrote:
> Hi there,
>
> I think this little piece of info deserves a place in the book. This
> explains why a "fax" extension won't work with e.g. chan_capi.
>
> Cheers, Philipp

> On Thu, 8 Jul 2004, Ryan Courtnage wrote:
> > AFAIK it's the digium card that _detects_ the fax, and allows the call
> > to jump to the 'fax' extension.  So fax _detection_ is a function of
> > the card/driver .. and using the 'fax' extension requires the use of a
> > digium card.
> >
> > SpanDSP just talks fax .. I don't think it actually does any detection.
>
> It's not the card that detects the fax.  Its the builtin code in asterisk
> that does it (dsp.c).  chan_zap.c is currently the only channel driver
> that uses the faxdetection but in theory it could be enabled/used in other
> channel drivers as well
>
> James

I assume the x100p is supported, what hardware in all is supported for this?

Thanks.