[Freeswitch-users] Fax T38 problems in proxy media

[Brian West]

Don't use proxy media mode, PRETEND PROXY MEDIA DOESN'T EXIST! :)

On Thu, Oct 31, 2019 at 12:35 PM David Villasmil <
david.villasmil.work at gmail.com> wrote:

> Can you paste the complete messages?
>
> On Thu, 31 Oct 2019 at 16:44, Jose Fco. Irles Durá <josefu at gmail.com>
> wrote:
>
>> Hi, I have sended another email to the list with attachments. I think
>> that the list not accepts attachments, sorry.
>>
>> I have several FreeSWITCH's (latest version from deb packages: 1.10.1
>> -release-12-f9990221e6) and I have problems with faxes in proxy media
>> (in bypass-media works).
>> In the sofia.conf.xml I have setted the param t38-passthru=true
>>
>> If the flow is:
>> 1. Initial INVITE
>> 2. Re-Invite from one of the legs with t38 sdp
>> Result: works
>>
>> But if the flow is:
>> 1. Initial INVITE
>> 2. Re-invite from one of the legs changing the media (at answer)
>> 3. Re-invite from one of the other legs with t38 sdp
>> Result: not works
>>
>> I tried with "soa_enable=false" without luck.
>>
>> FreeSWITCH seems that hangs the sip transaction.
>>
>> This capture is the first reinvite (in the flow, the "showing" line):
>> https://pastebin.com/raw/X4zrUr4k
>>
>> This capture is the reinvite with the t38 negotiation sended by the
>> receiver (Grandstream ATA):
>> https://pastebin.com/raw/KCXD51aH
>>
>> And this with the response (200ok) accepting the t38 negotiation):
>> https://pastebin.com/raw/ifqtPN8L
>>
>> How I can debug the problem?
>>
>> Best regards
>>
>> _________________________________________________________________________
>>
>> The FreeSWITCH project is sponsored by SignalWire https://signalwire.com
>> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN
>> services.
>> Build your next product on our scalable cloud platform.
>>
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>>
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>>
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>>
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>
> --
> Regards,
>
> David Villasmil
> email: david.villasmil.work at gmail.com
> phone: +34669448337
> _________________________________________________________________________
>
> The FreeSWITCH project is sponsored by SignalWire https://signalwire.com
> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN
> services.
> Build your next product on our scalable cloud platform.
>
> Join our online community to chat in real time
> https://signalwire.community
>
> Professional FreeSWITCH Services
> sales at freeswitch.com
> https://freeswitch.com
>
> Official FreeSWITCH Sites
> https://freeswitch.com/oss
> https://freeswitch.org/confluence
> https://cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> https://freeswitch.com



-- 

Brian West | Co-founder and Developer

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