[asterisk-users] UDPTL T38 via NAT

[Miguel Amez]

Hi guys,

Has anyone of you configured succesfully T38 asterisk faxing with hylafax
and t38modem?
I'm very interested on this kind of configuration, because I have installed
it with asterisk and I haven't been able to get it work.

Any kind of info on this issue would be appreciated.

Regards,
Miguel Amez

2010/6/22 marek cervenka <cervajs at fpf.slu.cz>

> > On 06/22/2010 04:38 PM, marek cervenka wrote:
> >>> On 06/22/2010 02:51 PM, Johann Steinwendtner wrote:
> >>>> On 2010-06-22 12:36, Remco Bressers wrote:
> >>>>> Dear list,
> >>>>>
> >>>>> I've got the following setup :
> >>>>>
> >>>>> [FAX-ATA]--[PBX LAN]--[Firewall]--[PBX WAN]-----[upstream SIP]
> >>>>>
> >>>>> On the PBX's we run Asterisk 1.4.33 with t38pt_udptl=yes in
> [general].
> >>>>> The FAX ATA is a Teles VoIPBox with T.38 support (that works). On the
> >>>>> PBX WAN, i see the following in udptl debug :
> >>>>>
> >>>>> Sent UDPTL packet to 172.16.0.156:4460 (type 0, seq 184, len 32)
> >>>>> Got UDPTL packet from 62.180.xx.xx:36170 (type 0, seq 0, len 32)
> >>>>> Sent UDPTL packet to 172.16.0.156:4460 (type 0, seq 185, len 32)
> >>>>> Got UDPTL packet from 62.180.xx.xx:36170 (type 0, seq 0, len 32)
> >>>>> Sent UDPTL packet to 172.16.0.156:4460 (type 0, seq 186, len 32)
> >>>>> Got UDPTL packet from 62.180.xx.xx:36170 (type 0, seq 0, len 29)
> >>>>>
> >>>>> This means my outgoing udptl traffic is correctly translated, but
> >>>>> somehow i'm sending 172.16.0.156 instead of my public IP address on
> the
> >>>>> firewall.
> >>
> >> try asterisk 1.6.2.9
> >
> > What would be the reason to do that? Is there any change on this in
> 1.6.2.9?
>
> yes
> 1.6.2.x branch is a lot better in T.38 area
>
> ---------------------------------------
> Marek Cervenka
> =======================================
>
>
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