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<font face="monospace">Hi Sasmita,<br>
<br>
Yes, give it a try by using the serialize_branches() and
next_branches() functions<br>
<br>
Regards,</font>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
<a class="moz-txt-link-freetext" href="https://www.siphub.com">https://www.siphub.com</a></pre>
<br>
<div class="moz-cite-prefix">On 5/5/26 10:32, Sasmita Panda via
Users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CALf-Q460N41B+xFmr_NCE3ZvzQmLfRuwEoniPkCOJu4EaTx9Vg@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div>Hi All , </div>
<div><br>
</div>
<div>With opensips 3.4 , if I have 2 registered contacts in the
database and I want to perform serial forking during lookup,
even if both contacts have the same q value. </div>
<div>Then how will I do this?</div>
<div><br>
</div>
<div>serialize_branches(1, 1); </div>
<div>Will this work?</div>
<div><b><i><br>
</i></b></div>
<div> # Serial forking: serialize branches one at a time
regardless of q-value.<br>
# keep_order=1 (2nd arg) is REQUIRED when contacts
have equal q-values</div>
<div><br>
</div>
<div>This is what I found while searching for a solution.Do let
me know , if I am in the right track or not . </div>
<div><b><i><br>
</i></b></div>
<div><b><i>Thanks & Regards</i></b></div>
<div>
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature">
<div dir="ltr">
<div dir="ltr">
<div><i>Sasmita Panda</i></div>
<div><i>Senior Network Testing and Software Engineer</i></div>
<div><i>3CLogic , <a class="moz-txt-link-freetext" href="ph:07827611765">ph:07827611765</a></i></div>
</div>
</div>
</div>
</div>
<br>
</div>
<br>
<div class="gmail_quote gmail_quote_container">
<div dir="ltr" class="gmail_attr">On Wed, Apr 22, 2026 at
3:17 PM Sasmita Panda <<a href="mailto:spanda@3clogic.com"
moz-do-not-send="true" class="moz-txt-link-freetext">spanda@3clogic.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div>you mean the global parameter of registrar module .</div>
<div>modparam("registrar", "max_contacts", 1)</div>
<div><br>
</div>
<div>This will keep 1 AOR per contact. AOR is address of
record which is the combination of user@IP (<a
href="mailto:user@20.0.0.1" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">user@20.0.0.1</a>).
In my case for every registration the IP address changes
with every registration. </div>
<div>So, OpenSIPS is considering this a different AOR and is
saving multiple contacts. </div>
<div>
<div dir="ltr" class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr"><b><i><br>
</i></b></div>
<div dir="ltr"><b><i><br>
</i></b></div>
<div dir="ltr"><b><i>Thanks & Regards</i></b>
<div><i>Sasmita Panda</i></div>
<div><i>Senior Network Testing and Software
Engineer</i></div>
<div><i>3CLogic , <a class="moz-txt-link-freetext" href="ph:07827611765">ph:07827611765</a></i></div>
</div>
</div>
</div>
</div>
</div>
<br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Apr 22, 2026 at
1:12 PM Richard Robson <<a
href="mailto:richard@rikrobson.co.uk" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">richard@rikrobson.co.uk</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Have you tried to limit the number with
max_contacts() parameter ? if you set the value to 1
it should only keep one AOR per contact. If that
doesn't do what you want you are going to have to set
up some logic to do a lookup foir a previous
registration and manage the contacts that way,
probably with a is_contact_registered function.<br>
<br>
there are plenty of optoins in the register module</p>
<p><a
href="https://opensips.org/docs/modules/3.6.x/registrar.html"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://opensips.org/docs/modules/3.6.x/registrar.html</a></p>
<p><br>
</p>
<p>Richard</p>
<div>On 22/04/2026 08:24, Sasmita Panda via Users wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Hi , </div>
<div><br>
</div>
<div>I am using opensips 3.4 .</div>
<div><br>
</div>
<div>While saving the contact I have called the save
unction as below . </div>
<div> </div>
<div>
if(!save("location","max-contacts=1,force-registration,path-lazy"))<br>
sl_reply_error();</div>
<div><br>
</div>
<div>My requirement was to save a single contact for
a username. If there will be multiple
registration then over ride the older one with the
latest one . </div>
<div><br>
</div>
<div>After this, I can see my calls getting forked
between 2 contacts . I can see that the IP
addresses of both contacts are different, but the
username part is the same. </div>
<div> <a href="http://user@10.0.0.1:45670"
target="_blank" moz-do-not-send="true">user@10.0.0.1:45670</a></div>
<div> <a href="http://user@10.0.0.2:58095"
target="_blank" moz-do-not-send="true">user@10.0.0.2:58095</a></div>
<div><br>
</div>
<div>This means the system saves both contacts for
the user. Consequently, during lookup, it finds 2
contacts and simultaneously forks the call to both
destinations. </div>
<div><br>
</div>
<div>In my case, the request comes from the ALB,
which has a dynamic IP. Also the call id can be
different. If I open multiple browser tabs and
register the same user from both tabs, the
registration will originate with different IPs and
call IDs. </div>
<div><br>
</div>
<div>How I will save single contact in this case ? </div>
<div><br>
</div>
<div><br>
</div>
<div>
<div dir="ltr" class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr"><b><i>Thanks & Regards</i></b>
<div><i>Sasmita Panda</i></div>
<div><i>Senior Network Testing and
Software Engineer</i></div>
<div><i>3CLogic , <a class="moz-txt-link-freetext" href="ph:07827611765">ph:07827611765</a></i></div>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
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