[Spce-user] Fwd: Re: Blacklist t.38 fax codec

[Leopoldo Iglesia]

Well,
The Main thing is that... If i blaklist t38 faxing and kamailio don't forward to the endpoint ...
It Will Work. So the need is not to forward anything about t38

Leopoldo iglesia 

> El 21/06/2014, a las 06:38, Raúl Alexis Betancor Santana <rabs at dimension-virtual.com> escribió:
> 
>> On Fri, Jun 20, 2014 at 04:19:02PM +0200, Leopoldo Iglesia wrote:
>> It actually is answered, but really not, cause ot tries to be a fax,
>> and it??s not. It rings, i took the phone and no audio, so  the call
>> is canceled as it??s supossed to ba a fax.
>> 
>> That??s the main thing on "blacklisting" fax
> 
> You 'getting the handset' doesn't mean that 'call got answered'.
> 
> SIP protocol NEEDS that the '200 Ok' reach the orginal partie to consider
> the call 'answered'
> 
> So maybe you have a very common problem within the VoIP world ...
> SIP-Device that doesn't respect the standar.
> 
> Taking a look at your log ... I see the 127.0.0.1 address, probably
> from the common SPCE-CE config.
> 
> Maybe you should take a look at the sipwise website and apply the
> 'trick' for the Audiocodes devices.
> 
> As a general advice to all ... there are LOT, TONS of SIP-Devices
> outthere that will simple refuse to work 'as expected' when they found
> something like 'localhost', '127.0.0.1' and so on the SIP-headers
> 
> I'm sure your ploblem comes from there ... and not from sending a fax
> on T.38 format.
> 
> Best regards
> 
> _______________________________________________
> Spce-user mailing list
> Spce-user at lists.sipwise.com
> http://lists.sipwise.com/listinfo/spce-user