<font size=2 face="sans-serif">The a=T38MaxBitRate issue you refer to
was one that was actually discovered at my company and submitted by a colleague.
It was fixed in 11.3.0 and 1.8.21.0. However, I think that it wouldn't
help based on the description below being that the parameter was missing
altogether. I think if that parameter is missing, then the code would in
fact default to 2400 as a safe value.</font>
<br><font size=2 face="sans-serif"><br>
Kevin Larsen - Systems Analyst </font>
<br>
<br>
<br>
<br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">Zoltán Fekete <blaxy@gyoz.info></font>
<br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">asterisk-users@lists.digium.com,
</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">07/21/2013 04:40 PM</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">[asterisk-users]
Fwd: Re: Asterisk T.38 Pass-Through doesn't work</font>
<br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">asterisk-users-bounces@lists.digium.com</font>
<br>
<hr noshade>
<br>
<br>
<br><font size=3><br>
Hi!</font>
<p><font size=3>I have exactly the same problem on asterisk 1.8.22.0 and
also on separate 11.2.1 when sending fax to PSTN.<br>
Tryed with spa-3102, spa-2102, Patton Smartnode 4634, and Zoiper softphone.<br>
SpanDsp also works without any problem on my box.</font>
<p><font size=3>As I remember it was a bug in 1.8.1.x that the a=T38MaxBitRate
paramater was sent as "maxBitRate". Without capital "M".
</font>
<p><font size=3>Are you closer to the solution?<br>
I have tryed almost anything and I don't understand why sends the T38MaxBitRate:2400
parameter.</font>
<p><font size=3>regards,</font>
<p><font size=3>Blaxy</font>
<p><font size=3>> On 06/03/2013 05:03 PM, Larry Moore wrote:<br>
> > Have you checked the installed version of firmware against the
latest <br>
> > available from Cisco?<br>
> Oh! I didn't guess to check. The firmware was not fresh, but upgrading
<br>
> doesn't help.<br>
> > Looking at your SIP information when your ITSP initiated a T.38
<br>
> > session it did not indicate a maxmimum bitrate, it would appear
your <br>
> > spa112 attempted to negotiate a connection at 2400bps.<br>
> Whether there is a way to force my provider to indicate maximum bitrate?<br>
> > Do you have a sip debug session when you sent a fax from your
Asterisk <br>
> > box to the PSTN, it would be interesting to see if it sends it
as a <br>
> > t.38 or reverts to G711 audio.<br>
> I have collect a set of debugs (with fresh SPA112 firmware) and actual
<br>
> config files:<br>
><br>
> == spa112 — cmd ReceiveFax<br>
> </font><a href=https://gist.github.com/anonymous/5701032><font size=3 color=blue><u>https://gist.github.com/anonymous/5701032</u></font></a><font size=3><br>
><br>
> == cmd SendFax — PSTN<br>
> </font><a href=https://gist.github.com/anonymous/5701150><font size=3 color=blue><u>https://gist.github.com/anonymous/5701150</u></font></a><font size=3><br>
><br>
> == spa112 — PSTN<br>
> </font><a href=https://gist.github.com/anonymous/5701207><font size=3 color=blue><u>https://gist.github.com/anonymous/5701207</u></font></a><font size=3><br>
><br>
> == sip.conf<br>
> </font><a href=https://gist.github.com/anonymous/5701231><font size=3 color=blue><u>https://gist.github.com/anonymous/5701231</u></font></a><font size=3><br>
><br>
> == udptl.conf<br>
> </font><a href=https://gist.github.com/anonymous/5701247><font size=3 color=blue><u>https://gist.github.com/anonymous/5701247</u></font></a><font size=3><br>
><br>
></font>
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