[Asterisk-Users] FAX, IAX and *....Maybe I'm dreaming...:-)

Senad Jordanovic senad at boltblue.com
Fri Dec 12 07:32:12 MST 2003


Dan wrote:
> Hi,
> 
> ----- Original Message -----
> From: "Senad Jordanovic" <senad at boltblue.com>
> To: <asterisk-users at lists.digium.com>
> Sent: Friday, December 12, 2003 3:42 PM
> Subject: RE: [Asterisk-Users] FAX, IAX and *....Maybe I'm
> dreaming...:-) 
> 
> 
>> Dan wrote:
>>> Hi,
>>> 
>>> It would be great if the IAX protocol will be able to tranfer fax
>>> data (even converted in another format) between Asterisk boxes,
>>> using low bandwidth codecs like GSM. I know that this is possible
>>> only with the G.711 now (passing faxes using the audio stream),
>>> but.... maybe in the future...some native support will permit this.
>>> 
>>> Just a thought,
>>> Dan
>>> 
>>> _______________________________________________
>>> Asterisk-Users mailing list
>>> Asterisk-Users at lists.digium.com
>>> http://lists.digium.com/mailman/listinfo/asterisk-users
>> 
>> My understanding is that fax calls are ONLY possible with G711/SIP
>> not IAX. Anyone?
> 
> This is because the fax is transmitted using the audio stream. It is
> not related to the signaling protocol (SIP/IAX etc.) but to the audio
> codec used. ..but.... if we can pack the fax data in a different type
> of stream then.... maybe... we can use GSM too... I talk about IAX,
> because this is the main one used by Asterisk. G.711 cannot be used
> for slow links, but this does not mean that the fax data (a couple of
> KB) cannot be passed reliable between 2 * servers using low bandwidth
> codecs or, why not, even another protocol...       
> 
> 
> BR,
> Dan
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users 

Great. :)  In that case.... This issue is "sorted" and very cool!




More information about the asterisk-users mailing list