[asterisk-users] setup for fax machine

[Gordon Henderson]

On Mon, 13 Oct 2008, Anthony Messina wrote:

> On Monday 13 October 2008 01:25:12 am Gordon Henderson wrote:
>> On Sun, 12 Oct 2008, sean darcy wrote:
>>> Becasue of all the issues with fax over voip, we want to use pstn for
>>> our fax machine, but not dedicate a line just to fax.
>>>
>>> I'm thinking of having asterisk answer the pstn line, check for fax
>>> tones, and route appropriately. In zapata ( chan_dahdi ) set
>>> faxdetect=incoming
>>>
>>> then the dial plan would have
>>>
>>> [incoming-pstn]
>>> exten => fax,1,Dial(DAHDI/1)  ; the fax machine
>>> exten => fax,2,Hangup()
>>>
>>> exten => s,1,Answer()
>>> exten => s,2,Dial(DAHDI/2)   ; internal extension
>>> .............
>>>
>>> Would this work? I'll need another TDM410 card to do this, so I'd like
>>> some reassurance before I go purchase it.
>>
>> You need to Answer() the call first, then insert a Wait(2). During that
>> time, asterisk will be listning for fax tone and jump to the fax extension
>> if it hears them.
>>
>> So:
>>
>> exten => s,1,Answer()
>> exten => s,n,Wait(2)
>>    Ringing()
>>    Dial(DAHDI/2)
>>    Hangup()
>>
>> and
>>
>> exten => fax,1,Dial(DHADI/1)
>> exten => fax,n,Hangup()
>
> would you also be able to detect fax tones during the Backgound app?

I'm really not sure - I think you might have to try it!

Gordon