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Hello,<br>
<br>
the last address from next_gw() becaomes the last r-uri and that is
added as first contact. You will have to shift the URIs. Maybe the
simplest way would be to disable adding r-uri as contact in 3xx via
a mod param in sl module.<br>
<br>
Also, if you use 4.3, might worth looking at rtjson module, you can
build a json holding the destination addresses in the order you want
and the push them to r-uri and branches.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 04/06/15 17:00, Ali Taher wrote:<br>
</div>
<blockquote cite="mid:063701d09ed7$3ed99af0$bc8cd0d0$@vanrise.com"
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<p class="MsoNormal"><span style="color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I tried to not
calling append_branch() when last successful next_gw() using
below code :<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">$var(z)=0;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">$var(a)=0;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">if
(!load_gws(1, $rU, $fu)) <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
{<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
sl_send_reply("502", "Unable To lOad GatEwAyS");<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
exit; }<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">while(next_gw())
$var(z) = $var(z) +1;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">xlog("L_INFO",
"number of gateways : $var(z)\n"); <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">load_gws(1,
$rU, $fu);<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
while (next_gw()){<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
xlog("L_INFO", "gateway is : $ru\n"); <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
$var(a)=$var(a)+1;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
if($var(a)!=$var(z))append_branch();<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
}</span><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">In this case
I’m getting in contact headers the following gateways :
3,1,2<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">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Ali<o:p></o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="color:windowtext">From:</span></b><span
style="color:windowtext"> Ali Taher
[<a class="moz-txt-link-freetext" href="mailto:ataher@vanrise.com">mailto:ataher@vanrise.com</a>] <br>
<b>Sent:</b> Thursday, June 04, 2015 5:44 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:miconda@gmail.com">miconda@gmail.com</a>; 'Kamailio (SER) - Users
Mailing List'<br>
<b>Cc:</b> 'Ali Taher~Vanrise Technical Support'<br>
<b>Subject:</b> RE: [SR-Users] Kamailio second contact
header<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Hi Daniel,<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 it is the
case then the ordering shouldn’t be 1,2,3,3 ? but I’m
getting 3,1,2,3.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I tried to set
$(branch(uri)[-1]) = $null; after the while block , but
nothing changed </span><span
style="font-family:Wingdings;color:#1F497D">L</span><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">Ali<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="color:windowtext">From:</span></b><span
style="color:windowtext"> Daniel-Constantin Mierla [<a
moz-do-not-send="true" href="mailto:miconda@gmail.com">mailto:miconda@gmail.com</a>]
<br>
<b>Sent:</b> Thursday, June 04, 2015 5:28 PM<br>
<b>To:</b> Ali Taher; 'Kamailio (SER) - Users Mailing
List'<br>
<b>Subject:</b> Re: [SR-Users] Kamailio second contact
header<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hello,<br>
<br>
next_gw() is also setting the r-uri, so for the last
successful next_gw() you should not call anymore
append_branch(). Try to remove the last branch after the while
block:<br>
<br>
$(branch(uri)[-1]) = $null;<br>
<br>
Cheers,<br>
Daniel<span style="font-size:12.0pt"><o:p></o:p></span></p>
<div>
<p class="MsoNormal">On 04/06/15 16:01, Ali Taher 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 Daniel,</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’m using
this method because I’m having issue with append_branch
where last gateway is listed first.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">For example
if gateways are ordered in LCR_rule_target as 1,2,3 , I’m
having them in contact header as : 3,1,2,3</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’m using
below code : </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;background:silver;mso-highlight:silver">if
(!load_gws(1, $rU, $fu)) {</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
sl_send_reply("502", "Unable To lOad GatEwAyS");</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
exit;}</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
while(next_gw()){</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
append_branch(); }</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
sl_send_reply("302","Moved Temporary");</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver">
exit; </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;background:silver;mso-highlight:silver"> }</span><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">Any hint
regarding the above would be appreciated.</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">Regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Ali</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 #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="color:windowtext">From:</span></b><span
style="color:windowtext"> sr-users [<a
moz-do-not-send="true"
href="mailto:sr-users-bounces@lists.sip-router.org">mailto:sr-users-bounces@lists.sip-router.org</a>]
<b>On Behalf Of </b>Daniel-Constantin Mierla<br>
<b>Sent:</b> Thursday, June 04, 2015 4:41 PM<br>
<b>To:</b> Kamailio (SER) - Users Mailing List<br>
<b>Subject:</b> Re: [SR-Users] Kamailio second contact
header</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hello,<br>
<br>
the r-uri is added as a Contact address for 3xx replies -- I
don't remember if this is some RFC requirement or just an
implementation of the sl function for 3xx replies (well, I
haven't implemented those function either).<br>
<br>
The active branches of the request are added as contact
header to the reply. So you can practically use
append_branch() as many times as you need and then do
sl_send_reply("3xx", ...). You don't need to append headers
to replies explicitely.<br>
<br>
Cheers,<br>
Daniel<o:p></o:p></p>
<div>
<p class="MsoNormal">On 04/06/15 13:59, Ali Taher wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">I’m trying to build new contact header
that will be sent from Kamailio as below :<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span
style="background:silver;mso-highlight:silver">load_gws(1,
$rU, $fu);</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="background:silver;mso-highlight:silver">append_to_reply("Contact:");</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="background:silver;mso-highlight:silver">
while (next_gw())</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="background:silver;mso-highlight:silver">
{</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="background:silver;mso-highlight:silver">
append_to_reply("$ru");</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="background:silver;mso-highlight:silver">
}</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="background:silver;mso-highlight:silver">
append_to_reply("\r\n");</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="background:silver;mso-highlight:silver">
sl_send_reply("300","Multiple Choices");</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><span
style="background:silver;mso-highlight:silver">
exit;</span> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">yet I’m getting two Contact headers as
shown in below SIP message.<o:p></o:p></p>
<p class="MsoNormal">How can I remove second contact header
(highlighted below in gray)<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Via: SIP/2.0/UDP
192.168.26.3:42528;branch=z9hG4bK-d8754z-4c2cc56c3145b446-1---d8754z-;rport=42528;received=192.168.26.3<o:p></o:p></p>
<p class="MsoNormal">To: “9612"<a moz-do-not-send="true"
href="sip:9612@192.168.110.181"><sip:9612@192.168.110.181></a>;tag=b27e1a1d33761e85846fc98f5f3a7e58.1a8d<o:p></o:p></p>
<p class="MsoNormal">From: "test"<a moz-do-not-send="true"
href="sip:test@192.168.110.181"><sip:test@192.168.110.181></a>;tag=8571af74<o:p></o:p></p>
<p class="MsoNormal">Call-ID:
Y2MzOTNiOGRhMTc2NDkwZjIxNzZhYTAzZmM0OGE3NDY<o:p></o:p></p>
<p class="MsoNormal">CSeq: 2 INVITE<o:p></o:p></p>
<p class="MsoNormal"><span
style="background:yellow;mso-highlight:yellow">Contact:
<a moz-do-not-send="true"
href="sip:9612@C001,sip:9612@192.168.26.1,sip:9612@192.168.26.6,sip:9612@192.168.26.8">sip:9612@C001,sip:9612@192.168.26.1,sip:9612@192.168.26.6,sip:9612@192.168.26.8</a></span><o:p></o:p></p>
<p class="MsoNormal"><span
style="background:silver;mso-highlight:silver">Contact:
<a moz-do-not-send="true" href="sip:9612@192.168.26.8">sip:9612@192.168.26.8</a></span><o:p></o:p></p>
<p class="MsoNormal">Server: kamailio (4.1.8 (x86_64/linux))<o:p></o:p></p>
<p class="MsoNormal">Content-Length: 0<o:p></o:p></p>
<p class="MsoNormal"> <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">Ali<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:12.0pt;font-family:"Times New
Roman \,serif""><br>
<br>
<br>
</span><o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></pre>
</blockquote>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:12.0pt;font-family:"Times New Roman
\,serif""><br>
<br>
</span><o:p></o:p></p>
<pre>-- <o:p></o:p></pre>
<pre>Daniel-Constantin Mierla<o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://twitter.com/#%21/miconda">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a><o:p></o:p></pre>
<pre>Book: SIP Routing With Kamailio - <a moz-do-not-send="true" href="http://www.asipto.com">http://www.asipto.com</a><o:p></o:p></pre>
</blockquote>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><o:p> </o:p></span></p>
<pre>-- <o:p></o:p></pre>
<pre>Daniel-Constantin Mierla<o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://twitter.com/#%21/miconda">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a><o:p></o:p></pre>
<pre>Book: SIP Routing With Kamailio - <a moz-do-not-send="true" href="http://www.asipto.com">http://www.asipto.com</a><o:p></o:p></pre>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Book: SIP Routing With Kamailio - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a></pre>
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