[Spce-user] Faxing T.38

Matthew Ogden matthew at tenacit.net
Wed Jul 9 02:54:46 EDT 2014


Hi Martin

Did you manage to find the issue?
On 08 Jul 2014 6:30 PM, "Martin Stix" <ms at pluteus.at> wrote:

>  Hi!
>
>
>  I'm on
> mr3.3.1
> <https://www.sipwise.com/news/announcements/sipprovider-v3-3-released/>
>
> ​I'll do the new traces and send the logs.
>
>
>
>  Mit freundlichen Grüßen
> best regards
>
> Martin Stix
>   ------------------------------
> *Von:* Matthew Ogden <matthew at tenacit.net>
> *Gesendet:* Dienstag, 8. Juli 2014 18:18
> *An:* Martin Stix
> *Cc:* Daniel Grotti; spce-user
> *Betreff:* Re: [Spce-user] Faxing T.38
>
>
> Ya its not ideal that is not working.  Are you sure you are on the latest
> version of 2.8.
>
> I can't remember the commands (I'm using my mobile right now).  But if you
> search through some of my posts someone like Daniel or Andreas is probably
> showing someone like me how.  So get that output in the mean time.
>
> The next thing I would do is some the Wireshark screenshot like you did.
> For both call legs together - just multi select them at the same time.
>
> Lastly show your kamailio proxy and lb loss for the same call.  Just do a
> search  and replace to "sanitize" them before sending them. If you any
> custom template files attach that too.
> Then at least all the info is available to the next sip wise person you
> reads your email.
>
> Kind regards
> On 08 Jul 2014 4:20 PM, "Martin Stix" <ms at pluteus.at> wrote:
>
>>  Hi!
>>
>>  Tested with various pbx's and xcapi, same results.
>> The test pbx before only accepts t.38, no g711.
>>
>>  Regards
>>
>>
>>  Mit freundlichen Grüßen
>> Martin Stix
>> ms at pluteus.at
>>
>>
>> -------- Ursprüngliche Nachricht --------
>> Von: Daniel Grotti
>> Datum:08.07.2014 13:36 (GMT+01:00)
>> An: spce-user at lists.sipwise.com
>> Betreff: Re: [Spce-user] Faxing T.38
>>
>>  Hi Martin,
>> there is no way to terminate T38 on SPCE.
>> If your clients support T38 you can pass-through.
>> Otherwise, they need to negotiate by their self G711.
>>
>> SPCE acts as a relay in this case.
>>
>> That looks like a broken PBX, cause the communication is establish in
>> G711, and then the PBX try to send a T38 re-invite which is rejected with a
>> 488.
>> At this point the PBX should continue in G711 instead of send a BYE.
>>
>> Daniel
>>
>>
>>
>>
>> On 07/08/2014 11:47 AM, Martin Stix wrote:
>>
>>  Hi!
>>
>>
>>
>> Here's the one from client device, you see Reinvite to T.38:
>>
>>
>>
>>
>>
>> regards
>>
>>
>>
>>
>>
>>
>>
>> mit freundlichen Grüßen
>>
>> best regards
>>
>> Martin Stix
>>
>> CEO
>>
>> pluteus communication solutions
>>
>> ms at pluteus.at
>>
>> www.pluteus.at
>>
>> Dampfsägestraße 17
>>
>> 3300 Amstetten
>>
>> Austria
>>
>> tel.: +43 7472 28165 20
>>
>> fax.: +43 7472 28165 22
>>
>>
>>
>> -----Ursprüngliche Nachricht-----
>> Von: Andreas Granig [mailto:agranig at sipwise.com <agranig at sipwise.com>]
>> Gesendet: Dienstag, 08. Juli 2014 11:38
>> An: spce-user at lists.sipwise.com
>> Betreff: Re: [Spce-user] Faxing T.38
>>
>>
>>
>> Hello,
>>
>>
>>
>> You need to figure out where the re-invite is really coming from. The
>> NGCP itself never initiates re-invites by itself. Probably it's the user's
>> device? You need to capture the full call, not only the leg from NGCP to
>> carrier.
>>
>>
>>
>> Andreas
>>
>>
>>
>> On 07/08/2014 11:04 AM, Martin Stix wrote:
>>
>> > Hi!
>>
>> >
>>
>> > Has anything changed from 3.2 to 3.3.1?
>>
>> >
>>
>> >
>>
>> >
>>
>> > We are no longer able to terminate T.38 in and outgoing.
>>
>> >
>>
>> >
>>
>> >
>>
>> > Shouldn’t there be T.38 in Reinvite? It now shows g711U.
>>
>> >
>>
>> > From client to sipwise it states T.38.
>>
>> >
>>
>> >
>>
>> >
>>
>> > If nothing changed I have to bother my carrier.
>>
>> >
>>
>> >
>>
>> >
>>
>> > Screenshot:
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> > Thanks
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> > mit freundlichen Grüßen
>>
>> > best regards
>>
>> >
>>
>> > *Martin Stix*
>>
>> >
>>
>> > CEO
>>
>> > pluteus communication solutions
>>
>> > ms at pluteus.at <mailto:ms at pluteus.at <ms at pluteus.at>>
>>
>> >
>>
>> > www.pluteus.at
>>
>> >
>>
>> > Dampfsägestraße 17
>>
>> > 3300 Amstetten
>>
>> > Austria
>>
>> > tel.: +43 7472 28165 20
>>
>> > fax.: +43 7472 28165 22
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> >
>>
>> > _______________________________________________
>>
>> > Spce-user mailing list
>>
>> > Spce-user at lists.sipwise.com
>>
>> > http://lists.sipwise.com/listinfo/spce-user
>>
>> >
>>
>>
>>
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>>
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