<div dir="ltr">Hi Daniel,<div><br></div><div>I made a mistake with my formatting when I pasted here. I am calling append_branch() before t_load_contacts. I've attached a view of the entire route including where I was using drop; below. Also a packet capture that shows Kamailio forwarding the reply from the cnam provider back to the phone. I've discovered t_cancel_branches("this") and that seems to be doing the job of killing the second branch as well as the reply to the phone.</div><div><br></div><div>My main issue right now is serializing the branches, append_branch creates an additional branch but t_load_contacts fails. I've tried appending multiple branches and also using seturi to replicate the documentation as closely as possible with no luck.</div><div><br></div><div><div style="font-size:12.8px">route[CNAM_DIPS] {</div><div style="font-size:12.8px"> if ($avp(direction) == "in") {</div><span class="im" style="font-size:12.8px"><div> t_on_branch("CNAM_DIPS");</div><div> t_on_reply("CNAM_DIPS");</div><div> t_on_failure("CNAM_DIPS");</div></span><div style="font-size:12.8px"> $var(reply_count) = 0;<br></div><div style="font-size:12.8px"><div> append_branch("sip:<a href="tel:2152974400" value="+12152974400" target="_blank">8888888888</a>@<span style="font-size:small">222.22.222.22</span>:5060;trans-type=5", "0.5");</div><div> #t_load_contacts();</div><div> t_next_contacts();</div><div> t_relay();</div><div> break;</div></div><div style="font-size:12.8px"><div> }</div><div>}</div></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px"><div>branch_route[CNAM_DIPS] {</div><div> $var(modified_from) = "sip:" + $fU + "@<a href="http://sip.core.com/" target="_blank">sip.core.com</a>";</div><div> uac_replace_from("$var(modified_from)");</div><div>}</div></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px"><div>onreply_route[CNAM_DIPS] {</div><div> $var(reply_count) = $var(reply_count) + 1;</div><div> if (t_check_status("380")) {</div><div> $avp(cnam) = $(hdr(P-Asserted-Identity){<a href="http://nameaddr.name/" target="_blank">nameaddr.name</a>});</div><div> } else {</div><div> xlog("L_ERROR", "INFO: Received bad reply (on_reply_route[CNAM_DIPS]):"); </div><div> };</div><div><div> if ($var(reply_count) = 1) {</div><div> t_cancel_branches("this");</div><div> }</div></div><div> #drop;</div><div>}</div></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px"><div>failure_route[CNAM_DIPS] {</div><div> if (!t_next_contacts()) {</div><div> xlog("L_ERR", "ERROR: Gateway failure (failure_route[CNAM_DIPS]): Failed to ship call");</div><div> exit;</div><div> } else {</div><div> t_next_contacts();</div><div> t_relay();</div><div> };</div><div>}</div></div></div><div><br></div><div><div><br></div><div>Packet capture using drop in the on_reply route rather than t_cancel_branches("this"):</div><div><br></div><div><div>U 2016/07/04 08:46:41.223295 44.444.4.444:5060 -> 333.33.33.3:5060</div><div>INVITE <a href="http://sip:+12222222222@core.com:5060">sip:+12222222222@core.com:5060</a> SIP/2.0.</div><div>Via: SIP/2.0/UDP 44.444.4.444:5060;branch=z9hG4bK04Bef9112d99372eace.</div><div>From: "UNKNOWN" <sip:+13333333333@44.444.4.444;isup-oli=62>;tag=gK046fcff6.</div><div>To: <<a href="mailto:sip%3A2222222222@core.com">sip:2222222222@core.com</a>>.</div><div>Call-ID: 1698991986_66771899@44.444.4.444.</div><div>CSeq: 468700 INVITE.</div><div>Max-Forwards: 70.</div><div>Allow: INVITE,ACK,CANCEL,BYE,OPTIONS.</div><div>Accept: application/sdp.</div><div>Contact: "UNKNOWN" <sip:+13333333333@44.444.4.444:5060>.</div><div>P-Asserted-Identity: "UNKNOWN" <sip:+13333333333@44.444.4.444:5060>.</div><div>Supported: replaces.</div><div>Content-Length: 281.</div><div>Content-Disposition: session; handling=required.</div><div>Content-Type: application/sdp.</div><div>.</div><div>v=0.</div><div>o=Sonus_UAC 807784 731434 IN IP4 44.444.4.444.</div><div>s=SIP Media Capabilities.</div><div>c=IN IP4 55.555.5.55.</div><div>t=0 0.</div><div>m=audio 54018 RTP/AVP 0 18 101.</div><div>a=rtpmap:0 PCMU/8000.</div><div>a=rtpmap:18 G729/8000.</div><div>a=fmtp:18 annexb=no.</div><div>a=rtpmap:101 telephone-event/8000.</div><div>a=fmtp:101 0-15.</div><div>a=sendrecv.</div><div>a=ptime:20.</div><div><br></div><div><br></div><div>U 2016/07/04 08:46:41.230033 333.33.33.3:5060 -> 44.444.4.444:5060</div><div>SIP/2.0 100 trying -- your call is important to us.</div><div>Via: SIP/2.0/UDP 44.444.4.444:5060;branch=z9hG4bK04Bef9112d99372eace.</div><div>From: "UNKNOWN" <sip:+13333333333@44.444.4.444;isup-oli=62>;tag=gK046fcff6.</div><div>To: <<a href="mailto:sip%3A2222222222@core.com">sip:2222222222@core.com</a>>.</div><div>Call-ID: 1698991986_66771899@44.444.4.444.</div><div>CSeq: 468700 INVITE.</div><div>Server: kamailio (4.2.7 (x86_64/linux)).</div><div>Content-Length: 0.</div><div>.</div><div><br></div><div><br></div><div>U 2016/07/04 08:46:41.234143 333.33.33.3:5060 -> <a href="http://222.22.222.22:5060">222.22.222.22:5060</a></div><div>INVITE sip:8888888888@222.22.222.22:5060;trans-type=5 SIP/2.0.</div><div>Record-Route: <sip:333.33.33.3;lr;ftag=gK046fcff6;vsf=AAAAAAAAAAAAAAAAAAAAAABFXl4cUF5cXABSXl87aXN1cC1vbGk9NjI->.</div><div>Via: SIP/2.0/UDP 333.33.33.3;branch=z9hG4bK8ac3.daa229dcb24f16332fa5a21927e9a72f.0.</div><div>Via: SIP/2.0/UDP 44.444.4.444:5060;branch=z9hG4bK04Bef9112d99372eace.</div><div>From: "UNKNOWN" <<a href="mailto:sip%3A%2B13333333333@sip.core.com">sip:+13333333333@sip.core.com</a>>;tag=gK046fcff6.</div><div>To: <<a href="mailto:sip%3A2222222222@core.com">sip:2222222222@core.com</a>>.</div><div>Call-ID: 1698991986_66771899@44.444.4.444.</div><div>CSeq: 468700 INVITE.</div><div>Max-Forwards: 69.</div><div>Allow: INVITE,ACK,CANCEL,BYE,OPTIONS.</div><div>Accept: application/sdp.</div><div>Contact: "UNKNOWN" <sip:+13333333333@44.444.4.444:5060>.</div><div>P-Asserted-Identity: "UNKNOWN" <sip:+13333333333@44.444.4.444:5060>.</div><div>Supported: replaces.</div><div>Content-Length: 281.</div><div>Content-Disposition: session; handling=required.</div><div>Content-Type: application/sdp.</div><div>P-hint: branch_route CNAM_DIPS.</div><div>.</div><div>v=0.</div><div>o=Sonus_UAC 807784 731434 IN IP4 44.444.4.444.</div><div>s=SIP Media Capabilities.</div><div>c=IN IP4 55.555.5.55.</div><div>t=0 0.</div><div>m=audio 54018 RTP/AVP 0 18 101.</div><div>a=rtpmap:0 PCMU/8000.</div><div>a=rtpmap:18 G729/8000.</div><div>a=fmtp:18 annexb=no.</div><div>a=rtpmap:101 telephone-event/8000.</div><div>a=fmtp:101 0-15.</div><div>a=sendrecv.</div><div>a=ptime:20.</div><div><br></div><div><br></div><div>U 2016/07/04 08:46:41.367868 <a href="http://222.22.222.22:5060">222.22.222.22:5060</a> -> 333.33.33.3:5060</div><div>SIP/2.0 380 cnam lookup.</div><div>Via: SIP/2.0/UDP 333.33.33.3;branch=z9hG4bK8ac3.daa229dcb24f16332fa5a21927e9a72f.0.</div><div>Via: SIP/2.0/UDP 44.444.4.444:5060;branch=z9hG4bK04Bef9112d99372eace.</div><div>From: "UNKNOWN" <<a href="mailto:sip%3A%2B13333333333@sip.core.com">sip:+13333333333@sip.core.com</a>>;tag=gK046fcff6.</div><div>To: <<a href="mailto:sip%3A2222222222@core.com">sip:2222222222@core.com</a>>;tag=CNAM-16688-1467636671937.</div><div>Call-ID: 1698991986_66771899@44.444.4.444.</div><div>CSeq: 468700 INVITE.</div><div>Contact: "CNAM" <<a href="mailto:sip%3Acnam_gw@10.212.16.30">sip:cnam_gw@10.212.16.30</a>>; transport=udp.</div><div>Max-Forwards: 10.</div><div>P-Asserted-Identity: "Unavailable" <<a href="mailto:sip%3A%2B13333333333@sip.core.com">sip:+13333333333@sip.core.com</a>>.</div><div>Content-Length: 0.</div><div>.</div><div><br></div><div><br></div><div>U 2016/07/04 08:46:41.368421 333.33.33.3:5060 -> <a href="http://222.22.222.22:5060">222.22.222.22:5060</a></div><div>ACK sip:8888888888@222.22.222.22:5060;trans-type=5 SIP/2.0.</div><div>Via: SIP/2.0/UDP 333.33.33.3;branch=z9hG4bK8ac3.daa229dcb24f16332fa5a21927e9a72f.0.</div><div>From: "UNKNOWN" <<a href="mailto:sip%3A%2B13333333333@sip.core.com">sip:+13333333333@sip.core.com</a>>;tag=gK046fcff6.</div><div>To: <<a href="mailto:sip%3A2222222222@core.com">sip:2222222222@core.com</a>>;tag=CNAM-16688-1467636671937.</div><div>Call-ID: 1698991986_66771899@44.444.4.444.</div><div>CSeq: 468700 ACK.</div><div>Max-Forwards: 69.</div><div>Content-Length: 0.</div><div>.</div><div><br></div><div><br></div><div>U 2016/07/04 08:46:44.227076 333.33.33.3:5060 -> 44.444.4.444:5060</div><div>SIP/2.0 380 cnam lookup.</div><div>Via: SIP/2.0/UDP 44.444.4.444:5060;branch=z9hG4bK04Bef9112d99372eace.</div><div>From: "UNKNOWN" <sip:+13333333333@44.444.4.444;isup-oli=62>;tag=gK046fcff6.</div><div>To: <<a href="mailto:sip%3A2222222222@core.com">sip:2222222222@core.com</a>>;tag=CNAM-16688-1467636671937.</div><div>Call-ID: 1698991986_66771899@44.444.4.444.</div><div>CSeq: 468700 INVITE.</div><div>Contact: "CNAM" <<a href="mailto:sip%3Acnam_gw@10.212.16.30">sip:cnam_gw@10.212.16.30</a>>; transport=udp.</div><div>Max-Forwards: 10.</div><div>P-Asserted-Identity: "Unavailable" <<a href="mailto:sip%3A%2B13333333333@sip.core.com">sip:+13333333333@sip.core.com</a>>.</div><div>Content-Length: 0.</div><div>P-hint: onreply CNAM_DIPS.</div><div>.</div></div><div><br></div><div><br></div><div><br></div></div><div><br></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><p style="margin-top:8px;margin-bottom:8px;font-family:Helvetica,Verdana,Arial,sans-serif;font-size:0.85em;color:rgb(51,51,51);line-height:1.4"><span style="font-size:0.85em;line-height:1.4">___</span><br></p><p style="margin-top:8px;margin-bottom:8px;font-family:Helvetica,Verdana,Arial,sans-serif;font-size:1.1em;color:rgb(51,51,51);line-height:1.4">John Petrini</p><p style="margin-top:8px;margin-bottom:8px;font-family:Helvetica,Verdana,Arial,sans-serif;font-size:0.85em;color:rgb(51,51,51);line-height:1.6">NOC Systems Administrator // <strong>CoreDial, LLC</strong> // <a href="http://coredial.com/" title="CoreDial" style="color:rgb(35,104,179);text-decoration:none" target="_blank">coredial.com</a> // <a href="https://twitter.com/coredial" target="_blank"><img src="http://cdn2.hubspot.net/hub/210539/file-2353637622-gif/email/twitter-1.gif" alt="Twitter" style="vertical-align:text-bottom"></a> <a href="http://www.linkedin.com/company/99631" target="_blank"><img src="http://cdn2.hubspot.net/hub/210539/file-2351103565-gif/email/linkedin-1.gif" alt="LinkedIn" style="vertical-align:text-bottom"></a> <a href="https://plus.google.com/104062177220750809525/posts" target="_blank"><img src="http://cdn2.hubspot.net/hub/210539/file-2353637617-gif/email/googleplus-1.gif" alt="Google Plus" style="vertical-align:text-bottom"></a> <a href="http://success.coredial.com/blog" target="_blank"><img src="http://cdn2.hubspot.net/hub/210539/file-2351103560-gif/email/rss-1.gif" alt="Blog" style="vertical-align:text-bottom"></a> <br>Hillcrest I, 751 Arbor Way, Suite 150, Blue Bell PA, 19422 <br><strong>P: </strong><a style="color:rgb(35,104,179)">215.297.4400</a> x232 // <strong>F: </strong><a style="color:rgb(35,104,179)">215.297.4401</a> // <strong>E: </strong><a href="mailto:jpetrini@coredial.com" style="color:rgb(35,104,179);text-decoration:none" target="_blank">jpetrini@coredial.com</a></p><p style="color:rgb(0,0,0);font-family:'Times New Roman';font-size:medium"><a href="http://cta-redirect.hubspot.com/cta/redirect/210539/4c492538-6e4b-445e-9480-bef676787085" target="_blank"><img src="https://no-cache.hubspot.com/cta/default/210539/4c492538-6e4b-445e-9480-bef676787085.png" alt="Exceptional people. 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<br><div class="gmail_quote">On Mon, Jul 4, 2016 at 7:15 AM, Daniel-Constantin Mierla <span dir="ltr"><<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<p>Hello,</p>
<p>I expect that you have to call append_branch() before doing
t_load_contacts().</p>
<p>Then, where do you execute drop() for the sip reply? Kamailio is
dropping the replies if you call drop() -- this is a feature since
2005-2006 (openser 1.1.x or so), if I recall it properly at this
moment, I may even be the developer for this feature. Anyhow, it
should work fine if used in reply_route or onreply_route -- I used
for a new config last week inside reply_route to fix issues with a
broken gateway that doesn't like 183 before 180.</p>
<p>Maybe you can provide a pcap as well as relevant configuration
file snippets for use of the drop().</p>
<p>Cheers,<br>
Daniel<br>
</p><div><div class="h5">
<br>
<div>On 02/07/16 15:49, John Petrini wrote:<br>
</div>
</div></div><blockquote type="cite"><div><div class="h5">
<div dir="ltr"><span style="font-size:12.8px">Hello,</span>
<div style="font-size:12.8px"><br>
</div>
<div style="font-size:12.8px">I'm trying to append a branch,
assign it a q value so it has priority and serialize the new
branch and the main branch.</div>
<div style="font-size:12.8px"><br>
</div>
<div style="font-size:12.8px">The goal is to send the new branch
off to our CNAM provider, capture the CNAM in their reply to
an $avp then drop the branch, stick the cnam in the main
branch and allow the call to continue as normal. We do this
currently using OpenSIPS with serialize_branches(1) but the of
load_contacts() behavior seems to be different than
serialize_branches.</div>
<div style="font-size:12.8px"><br>
</div>
<div style="font-size:12.8px">route[CNAM_DIPS]</div>
<div style="font-size:12.8px">
<div> t_on_branch("CNAM_DIPS");</div>
<div> t_on_reply("CNAM_DIPS");</div>
<div> t_on_failure("CNAM_DIPS");</div>
<div> t_load_contacts();</div>
<div> t_next_contacts();</div>
<div>
append_branch(<a>"sip:2223334444@22.33.444.55:5600;trans-type=5"</a>,
"0.5");</div>
<div> relay();</div>
<div> break;</div>
<div><br>
</div>
<div>Two problems. First when t_next_contacts is called I get
the following error:</div>
<div>ERROR: pv [pv_branch.c:58]: pv_get_branchx(): error
accessing branch [0]<br>
</div>
<div>So it looks like the branches aren't actually being
loaded?</div>
<div><br>
</div>
<div>Second problem is that despite the first error my call
goes out on the branch I appended and I get a reply from the
CNAM provider but Kamailio forwards that reply back to the
phone causing the phone to send a second invite. In OpenSIPs
we just called drop, to drop the branch and let the main
branch continue but this doesn't seem to work in Kamailio.</div>
<div><br>
</div>
<div>I've read and reread the documentaion but it doesn't seem
to behave the way the documentation says it should. Is there
something I'm missing? Is there a better way to accomplish
this in Kamailio?</div>
<div><br>
</div>
<div>Thank You,</div>
</div>
<div>
<div data-smartmail="gmail_signature">
<div dir="ltr">
<div dir="ltr">
<div>
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">
<p style="margin-top:8px;margin-bottom:8px;font-family:Helvetica,Verdana,Arial,sans-serif;font-size:0.85em;color:rgb(51,51,51);line-height:1.4"><span style="font-size:0.85em;line-height:1.4">___</span><br>
</p>
<p style="margin-top:8px;margin-bottom:8px;font-family:Helvetica,Verdana,Arial,sans-serif;font-size:1.1em;color:rgb(51,51,51);line-height:1.4">John
Petrini</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div></div><span class=""><pre>_______________________________________________
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</pre>
</span></blockquote><span class="HOEnZb"><font color="#888888">
<br>
<pre cols="72">--
Daniel-Constantin Mierla
<a href="http://www.asipto.com" target="_blank">http://www.asipto.com</a> - <a href="http://www.kamailio.org" target="_blank">http://www.kamailio.org</a>
<a href="http://twitter.com/#!/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a></pre>
</font></span></div>
</blockquote></div><br></div>