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--></style></head><body bgcolor="white" lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I think the problem is, a 488 will stop the call altogether?</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I cant recall, but if you get a 488 in a REINVITE, will the call not terminate after that, or does it “failback” to leaving t38 un-negotiated… might be device dependent?</span></p>
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<b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext"> <a href="mailto:spce-user-bounces@lists.sipwise.com">spce-user-bounces@lists.sipwise.com</a> [mailto:<a href="mailto:spce-user-bounces@lists.sipwise.com">spce-user-bounces@lists.sipwise.com</a>] <b>On Behalf Of </b>Leopoldo Iglesia<br>
<b>Sent:</b> 20 June 2014 01:55 PM<br><b>To:</b> <a href="mailto:spce-user@lists.sipwise.com">spce-user@lists.sipwise.com</a><br><b>Subject:</b> Re: [Spce-user] Fwd: Re: Blacklist t.38 fax codec</span></p></div></div><p class="MsoNormal">
</p><div><p class="MsoNormal">Ok. "has_totag" where is located ??<br><br>El 20/06/2014 13:35, Daniel Grotti escribió:</p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><div><p class="MsoNormal">
I have nothing ready to give you right now.<br>Basically on kamailio proxy you should match a Re-invite (using the "has_totag") and check if SDP contains t38 headers/codec (just have a look how the T38 reinvite looks like).<br>
So, if you receive a re-invite with T38 headers into SDP, just send back a 488 reply.<br><br>Daniel<br><br><br><br><br><br>On 06/20/2014 01:28 PM, Leopoldo Iglesia wrote:</p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div><p class="MsoNormal">Fine, how can I do this hack? cause endpoints is impossible to mod config, so they are rented and provisioned by an ftth operator.<br><br>El 20/06/2014 13:23, Daniel Grotti escribió:</p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div><p class="MsoNormal">Hi,<br>I think you need to avoid to forward the T38 Re-INVITE, so you should hack your SPCE in order to reply to the T38 re-invite with a "488 Not acceptable here", for example.<br>So the sender SHOULD fallback to G711.<br>
Anyway, the best solution if you have endpoint with t38 enabled but they don't work well, is to disable t38.<br><br><br>Daniel<br><br><br><br>On 06/20/2014 01:15 PM, Leopoldo Iglesia wrote:</p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
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</td><td style="padding:0cm 0cm 0cm 0cm"></td></tr></table><p class="MsoNormal"><br>> But both endpoints support it, that is the problem and the only > scenario when it fails, so i want SPCE not to send Fax negotiation to > endpoint,.<br>
<br><br><br> El 20/06/2014 12:12, Daniel Grotti escribió: >> Hi, >> that's strange, if one of the endpoints try to switch to t38 and the >> other endpoint doesn't support it, they should fallback to G711. >> >> Daniel >> >> >> >> >> >> >> On 06/20/2014 01:33 AM, Leopoldo Iglesia wrote: >>> How can I, blacklist t.38 to avoid endpoints to try t38 negotiation? >>> >>> When i call from ericcson ont to fax capable endpoint, it try to >>> connect t38 fax and There is no voice. >>> >>> Thanks >>> >>> Leopoldo iglesia >>> >>> _______________________________________________ >>> Spce-user mailing list >>> <a href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a> >>> <a href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a> >> >> _______________________________________________ >> Spce-user mailing list >> <a href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a> >> <a href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a> > > </p>
</div><p class="MsoNormal"><br><br><br><br></p><pre>_______________________________________________</pre><pre>Spce-user mailing list</pre><pre><a href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a></pre>
<pre><a href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a></pre></blockquote><p class="MsoNormal"><br><br><br><br></p><pre>_______________________________________________</pre>
<pre>Spce-user mailing list</pre><pre><a href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a></pre><pre><a href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a></pre>
</blockquote><p class="MsoNormal"><br><br><br><br></p><pre>_______________________________________________</pre><pre>Spce-user mailing list</pre><pre><a href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a></pre>
<pre><a href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a></pre></blockquote><p class="MsoNormal"><br><br><br><br></p><pre>_______________________________________________</pre>
<pre>Spce-user mailing list</pre><pre><a href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a></pre><pre><a href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a></pre>
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