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      The log for kamailio-proxy tells this when I call , and client
      tries to negotiate as fax.... <br>
      <br>
      Any ideas, apart from las post? Thanks<br>
      <br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: Setting PPI to
      '<a class="moz-txt-link-rfc2396E" href="mailto:sip:984099520@154.58.3.135"><sip:984099520@154.58.3.135></a>' -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: Prepare Diversion setting -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: No selector set, not setting CLI -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: Prepare History-Info setting -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: No selector set, not setting CLI -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: Applying callee-out domain rewrite rules using
      dpid '4' - <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: No matching rewrite rules for 'x1008' found -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: Setting P-Called-Party-ID
      '<a class="moz-txt-link-rfc2396E" href="mailto:sip:x1008@154.58.3.135"><sip:x1008@154.58.3.135></a>' - <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
      <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: Writing sbc parameters 
      ;aleg_sst_enable=no;sst_enable=no - <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a>
      <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: Appending P-D-URI
      '<a class="moz-txt-link-abbreviated" href="mailto:sip:lb@127.0.0.1;lr;socket=">sip:lb@127.0.0.1;lr;socket=</a>'sip:154.58.3.135:5060'' -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: Forcing request via B2BUA 'sip:127.0.0.1:5080' -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2391]: INFO:
      <script>: Request leaving server, D-URI='sip:127.0.0.1:5080'
      - <a class="moz-txt-link-abbreviated" href="mailto:R=sip:x1008@154.58.3.159:5060">R=sip:x1008@154.58.3.159:5060</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2403]: INFO:
      <script>: NAT-Reply - S=100 - Connecting M=INVITE
      IP=154.58.3.158:5060 (127.0.0.1:5080) <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:43 SIPSW /usr/sbin/kamailio[2395]: INFO:
      <script>: NAT-Reply - S=180 - Ringing M=INVITE
      IP=154.58.3.158:5060 (127.0.0.1:5080) <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2399]: INFO:
      <script>: New request - M=CANCEL
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a> <a class="moz-txt-link-abbreviated" href="mailto:F=sip:x1009@154.58.3.135">F=sip:x1009@154.58.3.135</a>
      <a class="moz-txt-link-abbreviated" href="mailto:T=sip:984099519@154.58.3.135">T=sip:984099519@154.58.3.135</a> IP=154.58.3.158:5060 (127.0.0.1:5060)
      <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2399]: INFO:
      <script>: Stop mediaproxy for current branch using first Via
      - <a class="moz-txt-link-abbreviated" href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2399]: ERROR: rtpproxy-ng
      [rtpproxy.c:1348]: proxy replied with error: Call-ID not found or
      tags didn't match<br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2399]: INFO:
      <script>: Request leaving server via local route -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: INFO:
      <script>: NAT-Reply - S=487 - Request terminated M=INVITE
      IP=154.58.3.158:5060 (127.0.0.1:5080) <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: INFO:
      <script>: Failure route for local call -
      <a class="moz-txt-link-abbreviated" href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: INFO:
      <script>: Stop mediaproxy for current branch using first Via
      - <a class="moz-txt-link-abbreviated" href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a> <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: ERROR: rtpproxy-ng
      [rtpproxy.c:1348]: proxy replied with error: Call-ID not found or
      tags didn't match<br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2393]: INFO:
      <script>: Final reply - <a class="moz-txt-link-abbreviated" href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
      <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      Jun 19 10:36:52 SIPSW /usr/sbin/kamailio[2401]: INFO:
      <script>: New request - M=ACK <a class="moz-txt-link-abbreviated" href="mailto:R=sip:984099519@154.58.3.135">R=sip:984099519@154.58.3.135</a>
      <a class="moz-txt-link-abbreviated" href="mailto:F=sip:x1009@154.58.3.135">F=sip:x1009@154.58.3.135</a> <a class="moz-txt-link-abbreviated" href="mailto:T=sip:984099519@154.58.3.135">T=sip:984099519@154.58.3.135</a>
      IP=154.58.3.158:5060 (127.0.0.1:5060) <a class="moz-txt-link-abbreviated" href="mailto:ID=15059@154.58.3.158">ID=15059@154.58.3.158</a><br>
      <br>
      <br>
      El 20/06/2014 14:24, Daniel Grotti escribió:<br>
    </div>
    <blockquote cite="mid:53A427E9.2060504@sipwise.com" type="cite">
      <meta content="text/html; charset=ISO-8859-1"
        http-equiv="Content-Type">
      <div class="moz-cite-prefix">Could be,<br>
        as I see also the normal t38 negotiation is
        client-dependent....it <br>
        <br>
        But from RFC3261:<br>
        <br>
         During the session, either Alice or Bob may decide to change
        the<br>
           characteristics of the media session.  This is accomplished
        by<br>
           sending a re-INVITE containing a new media description.  This
        re-<br>
           INVITE references the existing dialog so that the other party
        knows<br>
           that it is to modify an existing session instead of
        establishing a<br>
           new session.  The other party sends a 200 (OK) to accept the
        change.<br>
           The requestor responds to the 200 (OK) with an ACK.  If the
        other<br>
           party does not accept the change, he sends an error response
        such as<br>
           488 (Not Acceptable Here), which also receives an ACK. 
        However, the<br>
           failure of the re-INVITE does not cause the existing call to
        fail -<br>
           the session continues using the previously negotiated<br>
           characteristics.<br>
        <br>
        <br>
        <br>
        Daniel<br>
        <br>
        <br>
        <br>
        <br>
        On 06/20/2014 02:08 PM, Matthew Ogden wrote:<br>
      </div>
      <blockquote
        cite="mid:3208b72ffc74c7722baa8b17aa0e2473@mail.gmail.com"
        type="cite">
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          <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>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
          <div>
            <div style="border:none;border-top:solid #e1e1e1
              1.0pt;padding:3.0pt 0cm 0cm 0cm">
              <p class="MsoNormal"> <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 moz-do-not-send="true"
                    href="mailto:spce-user-bounces@lists.sipwise.com">spce-user-bounces@lists.sipwise.com</a>
                  [mailto:<a moz-do-not-send="true"
                    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 moz-do-not-send="true"
                    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">
                  <div>
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                    <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
                        moz-do-not-send="true"
                        href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
                      >>> <a moz-do-not-send="true"
                        href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
                      >> >>
                      _______________________________________________
                      >> Spce-user mailing list >> <a
                        moz-do-not-send="true"
                        href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
                      >> <a moz-do-not-send="true"
                        href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
                      > > </p>
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                  <pre>_______________________________________________</pre>
                  <pre>Spce-user mailing list</pre>
                  <pre><a moz-do-not-send="true" href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a></pre>
                  <pre><a moz-do-not-send="true" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a></pre>
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                <pre><a moz-do-not-send="true" href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a></pre>
                <pre><a moz-do-not-send="true" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a></pre>
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              <pre><a moz-do-not-send="true" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a></pre>
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            <pre><a moz-do-not-send="true" href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a></pre>
            <pre><a moz-do-not-send="true" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a></pre>
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<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
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<a class="moz-txt-link-abbreviated" href="mailto:Spce-user@lists.sipwise.com">Spce-user@lists.sipwise.com</a>
<a class="moz-txt-link-freetext" href="http://lists.sipwise.com/listinfo/spce-user">http://lists.sipwise.com/listinfo/spce-user</a>
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