[Freeswitch-users] Faxing transcoding issues.

[Mirko Brankovic]

exactly, or a 2-liner :)

On Thu, Aug 4, 2016 at 2:11 PM, Andrew Cassidy <
andrew at cassidywebservices.co.uk> wrote:

> I might be able to sort this with a 1-liner... going to give it a go.
>
>
> On 4 August 2016 at 12:47, Mirko Brankovic <mirkobrankovic at gmail.com>
> wrote:
>
>> I had the same question.
>>
>> There is no fall back to previous codec that call was set up when t38 is
>> negotiated no matter that was the sucess of that negotiation
>>
>> You can always file a feature/bug maybe request...
>> mirko
>>
>> On Thu, Aug 4, 2016 at 1:33 PM, Andrew Cassidy <
>> andrew at cassidywebservices.co.uk> wrote:
>>
>>> I'm getting the same with 1.6.9
>>>
>>> Ideally I'd like FreeSWITCH to be able to determine on the fly that the
>>> sender supports T38.
>>>
>>> Kind regards,
>>>
>>> On 4 August 2016 at 10:27, Mirko Brankovic <mirkobrankovic at gmail.com>
>>> wrote:
>>>
>>>> From my experiance if you send t38 re-invite then FS will expect T38
>>>> even if remote side refuses it.
>>>>
>>>> If you wont to transcode you need to not send the re-invite.
>>>>
>>>> Get the scenario you need form here:
>>>> https://wiki.freeswitch.org/wiki/Mod_spandsp#t38_gateway
>>>>
>>>> -mirko
>>>>
>>>> On Thu, Aug 4, 2016 at 10:55 AM, Andrew Cassidy <
>>>> andrew at cassidywebservices.co.uk> wrote:
>>>>
>>>>> Good morning all,
>>>>>
>>>>> I've been playing with faxing and t38 over the last few days. I use a
>>>>> wholesale provider who detects and reinvites for t38, and have implemented
>>>>> the same in my systems. Passing t38 through unmodified is not an issue.
>>>>>
>>>>> The issue I do have, is in the event that the sender refuses the
>>>>> reinvite, I'd like freeswitch to transcode. In theory, this is set up
>>>>> correctly, but see this error message repeated over and over and ultimately
>>>>> the fax fails:
>>>>>
>>>>> [DEBUG] mod_spandsp_fax.c:1756 sofia/external/xxx at provider.com Error
>>>>> decoding UDPTL (172 bytes)
>>>>>
>>>>> Every other scenario I have worked through is working fine.
>>>>>
>>>>> For reference, the fax-specific dialplan entries:
>>>>>
>>>>> <action application="export" data="fax_enable_t38=true"/>
>>>>> <action application="export" data="fax_enable_t38_request=true"/>
>>>>> <action application="export" data="t38_passthru=true"/>
>>>>> <action application="export"
>>>>> data="nolocal:sip_execute_on_image=t38_gateway self" />
>>>>> <action application="set" data="execute_on_answer=t38_gateway peer" />
>>>>>
>>>>> Thanks in advance.
>>>>>
>>>>> --
>>>>> *Andrew Cassidy BSc (Hons) MBCS SSCA*
>>>>> Managing Director
>>>>>
>>>>> 03303 880 960 andrew at cassidyweb.co.uk
>>>>> <andrew at cassidywebservices.co.uk> www.cassidyweb.co.uk
>>>>> <http://www.cassidywebservices.co.uk>
>>>>>
>>>>>
>>>>> _________________________________________________________________________
>>>>> Professional FreeSWITCH Consulting Services:
>>>>> consulting at freeswitch.org
>>>>> http://www.freeswitchsolutions.com
>>>>>
>>>>> Official FreeSWITCH Sites
>>>>> http://www.freeswitch.org
>>>>> http://confluence.freeswitch.org
>>>>> http://www.cluecon.com
>>>>>
>>>>> FreeSWITCH-users mailing list
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>>>>> http://www.freeswitch.org
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Regards,
>>>> Mirko
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
>>>> Official FreeSWITCH Sites
>>>> http://www.freeswitch.org
>>>> http://confluence.freeswitch.org
>>>> http://www.cluecon.com
>>>>
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>>>>
>>>
>>>
>>>
>>> --
>>> *Andrew Cassidy BSc (Hons) MBCS SSCA*
>>> Managing Director
>>>
>>> 03303 880 960 andrew at cassidyweb.co.uk <andrew at cassidywebservices.co.uk>
>>> www.cassidyweb.co.uk <http://www.cassidywebservices.co.uk>
>>>
>>> _________________________________________________________________________
>>> Professional FreeSWITCH Consulting Services:
>>> consulting at freeswitch.org
>>> http://www.freeswitchsolutions.com
>>>
>>> Official FreeSWITCH Sites
>>> http://www.freeswitch.org
>>> http://confluence.freeswitch.org
>>> http://www.cluecon.com
>>>
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>>>
>>
>>
>>
>> --
>> Regards,
>> Mirko
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
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>>
>
>
>
> --
> *Andrew Cassidy BSc (Hons) MBCS SSCA*
> Managing Director
>
> 03303 880 960 andrew at cassidyweb.co.uk <andrew at cassidywebservices.co.uk>
> www.cassidyweb.co.uk <http://www.cassidywebservices.co.uk>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
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>



-- 
Regards,
Mirko
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