You can interrogate the SIP information for some of this using the SIP debug command on the CLI along with the udptl debug command. It's not perfect but it works for what you're looking for.<br><br><div class="gmail_quote">
On Tue, Feb 26, 2008 at 3:21 PM, Robert Moskowitz <<a href="mailto:rgm@htt-consult.com">rgm@htt-consult.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I am running Trixbox 2.4 which has Asterisk 1.4.18-1<br>
<br>
I have kind of followed:<br>
<a href="http://www.voip-info.org/tiki-index.php?page=Asterisk%20T.38" target="_blank">http://www.voip-info.org/tiki-index.php?page=Asterisk%20T.38</a><br>
<br>
I added to sip_general_custom.conf<br>
<br>
;NEEDED!!!<br>
t38pt_udptl = yes<br>
<br>
I did not add this to the actual SIP extension, as I assumed this being<br>
general it applies to all sip extensions, and doing a sip show peer ext#<br>
did indeed come up with t38pt_udptl = yes<br>
<br>
The fax is attached to a Grandstream 488, so I set it for fax mode: T.38<br>
<br>
I did leave DTMF as inband (can't find any docs on what to use for this).<br>
my rx_fax works just fine, but it did for fax pass-through.<br>
<br>
So how do I determine if T.38 was negotiated?<br>
<br>
<br>
<br>
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</blockquote></div><br>