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[Callweaver-users] Assistance in debugging T38Gateway application


 
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steveu at coppice.org
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PostPosted: Tue Jan 27, 2009 2:19 am    Post subject: [Callweaver-users] Assistance in debugging T38Gateway applic Reply with quote

Hi Julian,

In your log I can't see any received T.38 packets. i do, however see a
really interesting IP address, which seems to have come from the SIP
information - 99.999.183.2

Regards,
Steve


Julian Yap wrote:
Quote:
I found it works on occasions. The times that it does work, I see
something like this in the logs:
Jan 26 14:55:57 DEBUG app_t38gateway.c: FAX CED tone detected in T38 gateway!!!
Jan 26 14:55:57 DEBUG chan_sip.c: Forcing reinvite on SIP
(SIP/10001008-e984) for T.38 negotiation.

The times I don't see that, the Fax fails.

Any clues on why it sometimes does and does not have those lines and
how I can consistently get it to work?

Thanks,
Julian

On Mon, Jan 26, 2009 at 2:33 PM, Julian Yap <julianokyap@gmail.com> wrote:

Quote:
Hi,

I was wondering if there was anything obviously wrong with my test of
the T38Gateway application here:
http://callweaver.pastebin.com/m797c1f5c

In my extensions.conf, this is the line I used for testing:
exten => _8085859999, 1, T38Gateway(DAHDI/g1/8085859999)

(DID's and IP's changed in the paste)

If required, I can produce another debug with different options.

Thanks,
Julian


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johann.steinwendtner a...
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PostPosted: Tue Jan 27, 2009 2:55 am    Post subject: [Callweaver-users] Assistance in debugging T38Gateway applic Reply with quote

Julian Yap wrote:
Quote:
RxFax looks to be working nicely for me with T.38. That is ATA --> CW

Mostly I'm trying to get:
Linksys SPA-2102 --> CW --> PSTN Fax
via T38Gateway

I guess I could do this:
Linksys SPA-2102 --> CW --> PSTN Fax
- Where ATA --> CW uses RxFax and is T.38
and CW --> PSTN Fax and is T.30

But that 2nd solution isn't as fun Sad

- Julian

Try analysing it with wireshark. You can check there if the tones (CNG/CED)
are present. You see the reinvites and also the udptl traffic.

Regards

Hans
Quote:
On Mon, Jan 26, 2009 at 9:31 PM, Michael <michael@networkstuff.co.nz> wrote:
Quote:
On Tue, 27 Jan 2009 20:19:22 you wrote:
Quote:
Where did you get that information from?

Quote:
From here:

http://www.callweaver.org/wiki/Faxing+with+CallWeaver

Basic checklist if T.38 does not work:
"""# are you using the latest CallWeaver Trunk and the latest SpanDSP
snapshot ?"""

I'm running the latest CW 1.2 Branch from SVN since I compiled CW
Trunk and that mentioned it was highly experimental.

Are most people running CW 1.2 Branch from SVN and the latest SpanDSP
snapshot?
RX fax works for me, so for this reason I have not blamed SpanDSP.

If someone can please supply me a config sample to interface Fax Gateway to
Hylafax, I will retry it, but right now I have not been able to get it
working...

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