Just to be sure we are on the same page.  The RURI is 90127X2XX9.  I don't want this number to have a $du.  The one that needs to have a $du is 9014XX7XX9.  And correct me if I am wrong but this shows that it does have $du set as 
<br />•Jul 13 10:26:17 proxy02 /usr/local/sbin/opensips[2917]: DBG:core:serialize_branches: Branch information &lt;sip:9014XX7XX9@64.136.174.30:5060,sip:9014XX7XX9@173.203.82.88:5060,,1000,0&gt;
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<br />Right?
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<br />On Aug 8, 2011 3:13pm, Bogdan-Andrei Iancu &lt;bogdan@opensips.org&gt; wrote:
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<br />&gt;     Hi Duane,
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<br />&gt;     Looking in the logs:
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<br />&gt;       Jul 13 10:26:17 proxy02
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<br />&gt;         /usr/local/sbin/opensips[2917]: DBG:core:serialize_branches: Msg
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<br />&gt;         information 122:53404,,,70,0&gt;
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<br />&gt;       Jul 13 10:26:17 proxy02
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<br />&gt;         /usr/local/sbin/opensips[2917]: DBG:core:serialize_branches:
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<br />&gt;         Branch information
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<br />&gt; 5060,sip:9014XX7XX9@173.203.82.88:5060,,1000,0&gt;
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<br />&gt;     As you can see, the RURI branch has no $du, just $ru.
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<br />&gt;     So, after appending the branch, when setting the new one, you have
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<br />&gt;     to set both ru and du again.
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<br />&gt;     Regards,
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<br />&gt;     Bogdan
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<br />&gt;     On 07/13/2011 07:59 PM, Duane Larson wrote:
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<br />&gt;       This week just isn&#39;t my week when it comes to
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<br />&gt;         serialize_branch.  I just noticed that when I set $ru then $du
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<br />&gt;         then append_branch and then set $ru again with a different uri
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<br />&gt;         and serialize the call that should be forwarded to the $du isn&#39;t
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<br />&gt;         being forwarded.  Instead the call goes directly to the ip that
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<br />&gt;         is in $ru.  This can be seen in the following debugs that I
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<br />&gt;         already posted to Saul for my Mediaproxy issue.
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<br />&gt;       Syslog Debug
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<br />&gt;       http://pastebin.com/ZpsR5WG8
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<br />&gt;       Do a search for &quot;serialize_branches: Branch information&quot; and
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<br />&gt;         you will see that the branch uri and duri are all set.
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<br />&gt;        
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<br />&gt;       Then in this siptrace you see that opensips doesn&#39;t send it
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<br />&gt;         to the $du destination but instead sends it directly to the uri
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<br />&gt;         in $ru.
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<br />&gt;       http://pastebin.com/Rvg6nNGa
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<br />&gt;           U 2011/07/13 10:49:04.650882
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<br />&gt;             173.XXX.XXX.107:5060 -&gt; 64.136.174.30:5060
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<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;           INVITE sip:9014XX7XX9@64.136.174.30:5060
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<br />&gt;             SIP/2.0.
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<br />&gt;         
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<br />&gt;         
<br />&gt; 
<br />&gt;           Record-Route:
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<br />&gt; ca22d05c94774292b9249854dada78de;did=3b5.b8577b82&gt;.
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<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;           Via: SIP/2.0/UDP
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<br />&gt;             173.XXX.XXX.107;branch=z9hG4bK34d7.0f26b417.0.
<br />&gt; 
<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;           Via: SIP/2.0/UDP
<br />&gt; 
<br />&gt; 64.132.245.122:53383;received=64.132.245.122;rport=53383;branch=z9hG4bKPj26a970ba1b3f44f9b823cbbe4c063bd6.
<br />&gt; 
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<br />&gt;         
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<br />&gt;         
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<br />&gt;           Max-Forwards: 69.
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<br />&gt;         
<br />&gt; 
<br />&gt;           From: &quot;SecondDell&quot; sip:90133XXX18@irock.com&gt;;tag=ca22d05c94774292b9249854dada78de.
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<br />&gt;         
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<br />&gt;           To: sip:90127X2XX9@irock.com&gt;.
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<br />&gt;           Contact: sip:zdcrgabl@64.132.245.122:53383&gt;.
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<br />&gt;         
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<br />&gt;           Call-ID: a46fcbf5977c40c6aa23bac44aa05ff4.
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<br />&gt;         
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<br />&gt;         
<br />&gt; 
<br />&gt;           CSeq: 3377 INVITE.
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<br />&gt;         
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<br />&gt;         
<br />&gt; 
<br />&gt;           Allow: SUBSCRIBE, NOTIFY, PRACK, INVITE, ACK,
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<br />&gt;             BYE, CANCEL, UPDATE, MESSAGE, REFER.
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<br />&gt;         
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<br />&gt;         
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<br />&gt;           Supported: 100rel, norefersub.
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<br />&gt;         
<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;           User-Agent: Blink 0.2.7 (Windows).
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<br />&gt;         
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<br />&gt;         
<br />&gt; 
<br />&gt;           Content-Type: application/sdp.
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<br />&gt; 
<br />&gt;         
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<br />&gt;         
<br />&gt; 
<br />&gt;           Content-Length: 693.
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<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;           P-hint: inbound-&gt;inbound .
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<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;         
<br />&gt; 
<br />&gt;           P-hint: Route[6]: mediaproxy .
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<br />&gt;         
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<br />&gt; 
<br />&gt;       
<br />&gt; I just upgraded to 1.7 and that didn&#39;t matter.
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<br />&gt; 
<br />&gt; _______________________________________________
<br />&gt; 
<br />&gt; Users mailing list
<br />&gt; 
<br />&gt; Users@lists.opensips.org
<br />&gt; 
<br />&gt; http://lists.opensips.org/cgi-bin/mailman/listinfo/users
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<br />&gt; 
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<br />&gt; 
<br />&gt; 
<br />&gt;     
<br />&gt; 
<br />&gt; 
<br />&gt;     -- 
<br />&gt; 
<br />&gt; Bogdan-Andrei Iancu
<br />&gt; 
<br />&gt; OpenSIPS eBootcamp - 19th of September 2011
<br />&gt; 
<br />&gt; OpenSIPS solutions and &quot;know-how&quot;
<br />&gt; 
<br />&gt;   
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