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On 22/07/2011 5:43 AM, Israel Gottlieb wrote:
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cite="mid:CAOYD821XmjYctL0LQ_DxdQOfOiFekNyhnnv5Lq9rdDam6=PfmQ@mail.gmail.com"
type="cite">
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<br>
<div class="gmail_quote">On Fri, Jul 22, 2011 at 12:39 AM, Kevin
P. Fleming <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:kpfleming@digium.com">kpfleming@digium.com</a>></span>
wrote:<br>
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<div class="im">On 07/21/2011 04:34 PM, Joaquin Sosa wrote:<br>
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On Mon, Jul 18, 2011 at 07:58, Steve Davies<<a
moz-do-not-send="true"
href="mailto:davies147@gmail.com" target="_blank">davies147@gmail.com</a>>
wrote:<br>
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The magic sauce that you need is "T.38" - Asterisk 1.6
supports this<br>
to a limited degree, and your ITSP will need to
support it.<br>
<br>
The sip.conf.sample file and the voip-info wiki has
all the<br>
information you need to try it out.<br>
<br>
</blockquote>
<br>
Correct. However it would be helpful to note T.38
support in Asterisk<br>
is broken. Take a T.38 ITSP, T.38 enabled Asterisk and
T.38 ATA and<br>
try to send a fax. It won't work!<br>
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We do this in our testing all the time, and it works fine.
Since you didn't specify any particular version of Asterisk,
there's no way to associate your "It won't work" statement
with anything in particular. Given the variations of T.38
implementations that exist in ATAs, carrier networks and
other places, *any* T.38 connection that involves
implementations from more than one vendor is (unfortunately)
likely to have problems, whether any version of Asterisk is
involved or not<br>
</blockquote>
<div><br>
<br>
well I tried a linksys spa 8000 and 2102 thru <br>
asterisk 1.8.3<br>
1.8.4<br>
1.6.2.16-19<br>
sonus switch at itsp (012 israel) <br>
<br>
and no luck<br>
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<br>
</blockquote>
<br>
Cisco released updated firmware earlier this year for the SPA8000
& SPA2102 which addresses T.38 problems.<br>
<br>
I have an SPA8800 which I was able to use T.38 mode to send faxes
successfully, I recently updated Asterisk box and also updated to
1.8.5, haven't tested the SPA8800 with this config but I am
expecting it will still work. The key to my success was to ensure
the SPA8800 did not do a re-invite to the ISP for the RTP stream.<br>
<br>
Larry.<br>
<br>
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