[asterisk-users] app_txfax, app_rxfax

Gordon Henderson gordon+asterisk at drogon.net
Fri May 4 11:07:43 MST 2007


On Fri, 4 May 2007, Lee Howard wrote:

> Gordon Henderson wrote:
>
>> The downside of iaxmodem is that (to my knowledge) you can't easilly 
>> implement an auto-answer/detect fax/voice/ auto attendant/voicemail system. 
>> The channel must be dedicated to faxing, and that's that. This may or may 
>> not be an issue for you though.
>
> If you needed this you would handle the fax/voice detection in Asterisk, 
> and only route the call to the iaxmodem if it detected fax.

Does that work though?

Asterisk has answered the call and listened for the initial tone, then it 
dils the IAX channel - which has to detect RING, then answer it and start 
modem initiation...

Hm. thinking about it now, I can see that it would work. Asterisk dials an 
IAX channel which does "ring" at the other end...

I think :)

Cheers,

Gordon


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