[Asterisk-Users] Fax Detection

[James Golovich]

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