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    <div class="moz-cite-prefix"><tt>Hi David,<br>
        <br>
        Can you post s<tt>omewhere the sip capture (ngrep <tt>or pcap)
            of a whole SU<tt>BSCRIBE/NOTIFY session showing (from
              opensips perspective) both in and out pacakges <tt>(inital,
                sequential , the whole dialog) ?<br>
              </tt></tt></tt></tt><br>
        <tt>Regards,</tt><br>
      </tt>
      <pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>

</pre>
      On 21.08.2014 19:44, Sidwell, David wrote:<br>
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        <p class="MsoNormal"><span style="color:#1F497D">Bogdan,<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">Yes we do.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">We first set
            the packet forward destination using the drouting module:<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal" style="text-indent:.5in"><span
            style="color:#1F497D">route_to_carrier("MGC",
            "$var(gateway_attrs)", "$var(carrier_attrs)")<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">Then modify the
            TO and FROM using the uac module:<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            construct_uri("sip", "$tU", "$avp(mgc_domain)", "", "",
            $avp(uri));<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            uac_replace_to("$avp(uri)");<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            construct_uri("sip", "$fU", "$avp(mgc_domain)", "", "",
            $avp(uri));<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            uac_replace_from("$avp(uri)");<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">We also replace
            the contact header, however for that we use the textops
            module:
            <o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            subst('/^Contact: ([^@]*@)[a-zA-Z_0-9.:-]+(.*)$/Contact:
            \1$var(contact)\2/ig');<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">And finally we
            forward the packet using tm:<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            if (!t_relay())<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            {<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">                               
            sl_reply_error();<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">               
            }<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">Thanks,<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D">Dave<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <div>
          <p class="MsoNormal"><u><span
style="font-size:18.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#3366FF">______________________________________    
                ______</span></u><span
style="font-size:18.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;"> <br>
              <br>
            </span><b><span
style="font-size:4.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#244061"><o:p></o:p></span></b></p>
          <p class="MsoNormal"><b><span
style="font-size:9.5pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#244061">Dave
                Sidwell
              </span></b><span
style="font-size:9.5pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#244061">| <b>NEC
                Enterprise Communication Technologies | Senior Manager -
                SW Development<o:p></o:p></b></span></p>
          <p class="MsoNormal"><span
style="font-size:7.5pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#244061"> 
              4 Forest Parkway  |  Shelton, CT 06484</span><span
style="font-size:7.5pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#1F497D"></span><span
              style="font-size:7.5pt;font-family:&quot;Tms
              Rmn&quot;,&quot;serif&quot;">|</span><span
style="font-size:7.5pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:navy"> 
            </span><span style="font-family:Wingdings;color:#3366FF">(</span><span
              style="font-size:7.5pt;font-family:&quot;Tms
              Rmn&quot;,&quot;serif&quot;;color:#3366FF">
            </span><span style="font-size:7.5pt;font-family:&quot;Tms
              Rmn&quot;,&quot;serif&quot;;color:#244061">(O)
            </span><span
style="font-size:7.5pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#244061">(203) 926-5424
            </span><span style="font-size:7.5pt;font-family:&quot;Tms
              Rmn&quot;,&quot;serif&quot;;color:navy"> |</span><span
              style="font-size:7.5pt;font-family:&quot;Tms
              Rmn&quot;,&quot;serif&quot;;color:#3366FF">
            </span><span style="font-size:7.5pt;font-family:&quot;Tms
              Rmn&quot;,&quot;serif&quot;">   </span><span
              style="font-family:Wingdings;color:#3366FF">(</span><span
style="font-size:7.5pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;">
            </span><span
style="font-size:7.5pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#244061">(M)
              (203) 513-1677
            </span><span style="font-size:7.5pt;font-family:&quot;Tms
              Rmn&quot;,&quot;serif&quot;;color:navy"> | </span>
            <span style="font-size:7.5pt;font-family:&quot;Tms
              Rmn&quot;,&quot;serif&quot;;color:#3366FF"> </span><span
              style="font-family:Wingdings;color:#3366FF">*</span><span
              style="font-size:7.5pt;font-family:&quot;Tms
              Rmn&quot;,&quot;serif&quot;;color:#3366FF">
            </span><u><span
style="font-size:8.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:#3366FF"><a class="moz-txt-link-abbreviated" href="mailto:david.sidwell@necect.com">david.sidwell@necect.com</a></span></u><span
              style="font-size:12.0pt;font-family:&quot;Times New
              Roman&quot;,&quot;serif&quot;;color:#1F497D"><o:p></o:p></span></p>
        </div>
        <p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
        <div>
          <div style="border:none;border-top:solid #B5C4DF
            1.0pt;padding:3.0pt 0in 0in 0in">
            <p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:windowtext">
                Bogdan-Andrei Iancu [<a class="moz-txt-link-freetext" href="mailto:bogdan@opensips.org">mailto:bogdan@opensips.org</a>]
                <br>
                <b>Sent:</b> Thursday, August 21, 2014 10:41 AM<br>
                <b>To:</b> Sidwell, David; OpenSIPS users mailling list<br>
                <b>Subject:</b> Re: [OpenSIPS-Users] Relay
                Subscribe/Notify for MWI<o:p></o:p></span></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <p class="MsoNormal"><tt><span style="font-size:10.0pt">David,
              </span></tt><span
              style="font-size:10.0pt;font-family:&quot;Courier
              New&quot;,&quot;serif&quot;"><br>
              <br>
              <tt>Do you use the "uac" module to do the changes over the
                TO/FROM headers or ??</tt><br>
              <br>
              <tt>Regards,</tt><br>
              <br>
            </span><o:p></o:p></p>
          <pre>Bogdan-Andrei Iancu<o:p></o:p></pre>
          <pre>OpenSIPS Founder and Developer<o:p></o:p></pre>
          <pre><a moz-do-not-send="true" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a><o:p></o:p></pre>
          <p class="MsoNormal">On 21.08.2014 16:31, Sidwell, David
            wrote:<o:p></o:p></p>
        </div>
        <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
          <p class="MsoNormal"><span style="color:#1F497D">Hi Bogdan,</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">Currently the
              SUBSCRIBE is not handled locally, but forwarded to a
              server which implements RFC 3842.</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">In my
              application, the UAC’s register with OpenSIPS (Registrar
              module) which in turn registers them with the external
              server (Registrant module).</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">The TO/FROM
              headers of further requests are modified to reflect the
              domain of the server and the requests are forwarded to the
              server.</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">In-dialog
              responses are automatically modified with the reverse
              modifications and forwarded back to the UAC.</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">This works
              fine for all requests except the SUBSCRIBE/NOTIFY.</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">Ideally the
              re-SUBSCRIBE would contain the same modifications, and the
              NOTIFY’s would have the reverse modifications.</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">(I am OK with
              manually making the transformations, but the
              re-SUBSCRIBE’s do not seem to be processed via the route
              script)</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">I am open to
              a solution where opensips handles the subscribes
              (presence_mwi?), but I don’t see any way I could retrieve
              the MWI indication from the server.</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">Thanks,</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D">Dave</span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <p class="MsoNormal"><span style="color:#1F497D"> </span><o:p></o:p></p>
          <div>
            <div style="border:none;border-top:solid #B5C4DF
              1.0pt;padding:3.0pt 0in 0in 0in">
              <p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:windowtext">
                  Bogdan-Andrei Iancu [<a moz-do-not-send="true"
                    href="mailto:bogdan@opensips.org">mailto:bogdan@opensips.org</a>]
                  <br>
                  <b>Sent:</b> Thursday, August 21, 2014 3:54 AM<br>
                  <b>To:</b> OpenSIPS users mailling list; Sidwell,
                  David<br>
                  <b>Subject:</b> Re: [OpenSIPS-Users] Relay
                  Subscribe/Notify for MWI</span><o:p></o:p></p>
            </div>
          </div>
          <p class="MsoNormal"> <o:p></o:p></p>
          <div>
            <p class="MsoNormal"><tt><span style="font-size:10.0pt">Hi
                  David,</span></tt><span
                style="font-size:10.0pt;font-family:&quot;Courier
                New&quot;,&quot;serif&quot;"><br>
                <br>
                <tt>How do you change the TO / FROM hdrs in initial
                  SUBSCRIBE ?? Is the SUBSCRIBE handled locally
                  (opensips as presence server) or you forward it
                  further ?</tt><br>
                <br>
                <tt>Regards,</tt><br>
                <br>
                <br>
              </span><o:p></o:p></p>
            <pre>Bogdan-Andrei Iancu<o:p></o:p></pre>
            <pre>OpenSIPS Founder and Developer<o:p></o:p></pre>
            <pre><a moz-do-not-send="true" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a><o:p></o:p></pre>
            <p class="MsoNormal">On 16.08.2014 00:07, Sidwell, David
              wrote:<o:p></o:p></p>
          </div>
          <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoNormal">Hello,<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoNormal">I am using OpenSIPS in an application
              relaying SIP messaging between clients and server with
              modifications to the “To”, “From” and “Contact” headers.<o:p></o:p></p>
            <p class="MsoNormal">This is working well for call control,
               however the server also provides MWI via
              Subscribe/Notify, and unfortunately this does not work
              properly.<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoNormal">There are two basic issues:<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoListParagraph"
              style="text-indent:-.25in;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span
                style="mso-list:Ignore">1.<span style="font:7.0pt
                  &quot;Times New Roman&quot;">      
                </span></span><!--[endif]-->Although the initial
              SUBSCRIBE can be modified and relayed successfully, it
              cannot create a dialog. Any subsequent “in-dialog”
              re-subscription messages seem to be automatically relayed
              but the “To”, “From” and “Contact” modifications are not
              included. These re-subscribes do NOT go through the
              configuration file route script so there is no opportunity
              to make any additional modifications.<o:p></o:p></p>
            <p class="MsoListParagraph"
              style="text-indent:-.25in;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span
                style="mso-list:Ignore">2.<span style="font:7.0pt
                  &quot;Times New Roman&quot;">      
                </span></span><!--[endif]-->“In-dialog” NOTIFY messages
              from the server do not get routed back to the client, but
              appear in the configuration file route script with
              “totags”. These can be manually routed back to the
              subscriber but any attempt to modify the To and From
              headers fails (due to the presence of the totags).<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoNormal">Questions:<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoListParagraph"
              style="text-indent:-.25in;mso-list:l0 level1 lfo4"><!--[if !supportLists]--><span
                style="mso-list:Ignore">-<span style="font:7.0pt
                  &quot;Times New Roman&quot;">         
                </span></span><!--[endif]-->Is there any way to
              configure OpenSIPS to allow for automatic relaying of the
              Subscribe/Notify messages in an application such as this?<o:p></o:p></p>
            <p class="MsoListParagraph"
              style="text-indent:-.25in;mso-list:l0 level1 lfo4"><!--[if !supportLists]--><span
                style="mso-list:Ignore">-<span style="font:7.0pt
                  &quot;Times New Roman&quot;">         
                </span></span><!--[endif]-->Is there a way to make use
              of the Presence modules to achieve the same function (The
              server will not issue PUBLISH commands).<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoNormal">Thanks,<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoNormal">Dave<o:p></o:p></p>
            <p class="MsoNormal"> <o:p></o:p></p>
            <p class="MsoNormal"><span
                style="font-size:12.0pt;font-family:&quot;Times New
                Roman , serif&quot;,&quot;serif&quot;"><br>
                <br>
                <br>
                <br>
              </span><o:p></o:p></p>
            <pre>_______________________________________________<o:p></o:p></pre>
            <pre>Users mailing list<o:p></o:p></pre>
            <pre><a moz-do-not-send="true" href="mailto:Users@lists.opensips.org">Users@lists.opensips.org</a><o:p></o:p></pre>
            <pre><a moz-do-not-send="true" href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><o:p></o:p></pre>
          </blockquote>
          <p class="MsoNormal"><span
              style="font-size:12.0pt;font-family:&quot;Times New Roman
              , serif&quot;,&quot;serif&quot;"> </span><o:p></o:p></p>
        </blockquote>
        <p class="MsoNormal"><span
            style="font-size:12.0pt;font-family:&quot;Times New
            Roman&quot;,&quot;serif&quot;"><o:p> </o:p></span></p>
      </div>
    </blockquote>
    <br>
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