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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">It also seems like AVPOPS module [1] may be a good solution here as it has functions to pull data from a database into AVPs based by user.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">[1]
<a href="http://www.opensips.org/html/docs/modules/2.2.x/avpops.html">http://www.opensips.org/html/docs/modules/2.2.x/avpops.html</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Ben Newlin</span><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:Calibri;color:black">From: </span>
</b><span style="font-family:Calibri;color:black"><users-bounces@lists.opensips.org> on behalf of sevpal <sevpal@aol.com><br>
<b>Reply-To: </b>sevpal <sevpal@aol.com>, OpenSIPS users mailling list <users@lists.opensips.org><br>
<b>Date: </b>Tuesday, June 21, 2016 at 11:20 AM<br>
<b>To: </b>OpenSIPS users mailling list <users@lists.opensips.org><br>
<b>Subject: </b>Re: [OpenSIPS-Users] How to invok lookup() and get attr from the caller, without side effects?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:Calibri;color:black">Hi, have you tried/considered running a simple query on the database and parsing for the information you need?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"tahoma","serif";color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:whitesmoke"><b><span style="font-size:10.0pt;font-family:"tahoma","serif";color:black">From:</span></b><span style="font-size:10.0pt;font-family:"tahoma","serif";color:black">
<a href="mailto:pimenta@inatel.br" title="pimenta@inatel.br">Rodrigo Pimenta Carvalho</a>
<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:whitesmoke"><b><span style="font-size:10.0pt;font-family:"tahoma","serif";color:black">Sent:</span></b><span style="font-size:10.0pt;font-family:"tahoma","serif";color:black"> Tuesday, June 21, 2016 10:39 AM<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:whitesmoke"><b><span style="font-size:10.0pt;font-family:"tahoma","serif";color:black">To:</span></b><span style="font-size:10.0pt;font-family:"tahoma","serif";color:black">
<a href="mailto:users@lists.opensips.org" title="users@lists.opensips.org">OpenSIPS users mailling list</a>
<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:whitesmoke"><b><span style="font-size:10.0pt;font-family:"tahoma","serif";color:black">Subject:</span></b><span style="font-size:10.0pt;font-family:"tahoma","serif";color:black"> Re: [OpenSIPS-Users] How to invok lookup()
and get attr from the caller, without side effects?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
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<p style="background:white"><span style="font-family:Calibri;color:black">Hi </span>
<span style="font-size:11.0pt;font-family:Calibri;color:black">Răzvan</span><span style="font-family:Calibri;color:black">.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">I have tried that idea. But that didn't work. The SIP INVITE message is being changed by the OpenSIPS in a wrong way, in my point of view.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">Do you know some way to save the entire SIP INVITE message before calling lookup() and then make the saved message take place after the lookup() execution?<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">My original message is:<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:Calibri;color:#006FC9">INVITE sip:6001@myDomain.com.br SIP/2.0</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Via: SIP/2.0/TCP 192.168.21.40:5090;rport;branch=z9hG4bK876727215</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">From: <sip:crdphmacl_SPnuV5xqtnSX@myDomain.com.br>;tag=179920819</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">To: <sip:6001@myDomain.com.br></span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Call-ID: 1410250893</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">CSeq: 21 INVITE</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Contact: <sip:crdphmacl_SPnuV5xqtnSX@xxx.yyy.240.204:60033;transport=tcp></span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Proxy-Authorization: Digest username="crdphmacl_SPnuV5xqtnSX", realm="localhost", nonce="5769458c000001cc263a7c0d6995dc48d42288ec6f8e4048", uri="sip:6001@myDomain.com.br", response="0f4c122d2a0a28dea6194c235cd77430",
algorithm=MD5</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Content-Type: application/sdp</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Max-Forwards: 70</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">User-Agent: Linphone/3.6.1 (eXosip2/4.0.0)</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Subject: Phone call</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Content-Length: 227</span><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:Calibri;color:black"><o:p> </o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">This is being changed to:<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:Calibri;color:#006FC9">INVITE
</span><span style="font-family:Calibri;color:red">sip:crdphmacl_SPnuV5xqtnSX@131.221.240.204:60672;transport=tcp;line=c6356a7d87d6f81 SIP/2.0</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Record-Route: <sip:myDomain.com.br;transport=tcp;lr;nat=yes;did=0b.b9e0cfe5></span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Via: SIP/2.0/TCP myDomain.com.br:5060;branch=z9hG4bKe2db.49d54587.0;i=1</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Via: SIP/2.0/TCP 192.168.21.40:5090;received=xxx.yyy.240.204;rport=60672;branch=z9hG4bK716249970</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">From: <sip:crdphmacl_SPnuV5xqtnSX@myDomain.com.br>;tag=12586028</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">To: <sip:6001@myDomain.com.br></span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Call-ID: 1106771604</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">CSeq: 21 INVITE</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Contact: <sip:crdphmacl_SPnuV5xqtnSX@xxx.yyy.240.204:60672;transport=tcp></span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Content-Type: application/sdp</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Max-Forwards: 70</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">User-Agent: Linphone/3.6.1 (eXosip2/4.0.0)</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Subject: Phone call</span><span style="font-family:Calibri;color:black"><br>
</span><span style="font-family:Calibri;color:#006FC9">Content-Length: 224</span><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
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<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">So, the caller is receiving its own SIP INVITE.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">That is why when A calls B, is A that rings, not B.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">It is becoming a bit complicated. So, I suspect I'm going to the incorrect direction....
<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">Best regards.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:Calibri;color:black">RODRIGO PIMENTA CARVALHO<br>
Inatel Competence Center<br>
Software<br>
Ph: +55 35 3471 9200 RAMAL 979<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt;background:white"><span style="font-family:Calibri;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><b><span style="font-size:11.0pt;font-family:Calibri;color:black">De:</span></b><span style="font-size:11.0pt;font-family:Calibri;color:black"> users-bounces@lists.opensips.org <users-bounces@lists.opensips.org>
em nome de Răzvan Crainea <razvan@opensips.org></span><span style="font-size:11.0pt;font-family:MingLiU;color:black"><br>
</span><b><span style="font-size:11.0pt;font-family:Calibri;color:black">Enviado:</span></b><span style="font-size:11.0pt;font-family:Calibri;color:black"> terça-feira, 21 de junho de 2016 04:24</span><span style="font-size:11.0pt;font-family:MingLiU;color:black"><br>
</span><b><span style="font-size:11.0pt;font-family:Calibri;color:black">Para:</span></b><span style="font-size:11.0pt;font-family:Calibri;color:black"> users@lists.opensips.org<br>
<b>Assunto:</b> Re: [OpenSIPS-Users] How to invok lookup() and get attr from the caller, without side effects?</span><span style="font-family:Calibri;color:black">
<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
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<p style="background:white"><tt><span style="font-size:10.0pt;color:black">Hi, Rodrigo!</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"><o:p> </o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black">Have you tried restoring the R-URI after the caller lookup? Something like:</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"><o:p> </o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black">$var(ru) = $ru;</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black">lookup("location", "", "$fu"); # this takes the caller from FROM uri, which I think is more suitable than from contact uri</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black">$ru = $var(ru);</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black"># continue your processing here</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black">....</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black"># now do the real lookup for the callee</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black">lookup("location");</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"><o:p> </o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black">Don't do the lookups in the reversed way, because you might loose some contacts.</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"><o:p> </o:p></span></p>
<p style="background:white"><tt><span style="font-size:10.0pt;color:black">Best regards,</span></tt><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<pre style="background:white"><span style="color:black">Răzvan Crainea<o:p></o:p></span></pre>
<pre style="background:white"><span style="color:black">OpenSIPS Solutions<o:p></o:p></span></pre>
<pre style="background:white"><span style="color:black"><a href="http://www.opensips-solutions.com" id="LPlnk925360">www.opensips-solutions.com</a><o:p></o:p></span></pre>
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<p class="MsoNormal" style="background:white"><span style="font-family:Calibri;color:black">On 06/20/2016 09:02 PM, Rodrigo Pimenta Carvalho wrote:<o:p></o:p></span></p>
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<p style="background:white"><span style="font-family:Calibri;color:black">Dear OpenSIPS-users,<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">The table location has the column attr where I use to store specific additional information for each registration.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">Whenever A calls B, I have to read this specific information from the A record and from the B record. That is, I need to get and handle specific information about the caller and callee.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">For the callee, I use to invoke the lookup("location") function that put the needed information in the attr_avp. That is good and works very well. Then, I just have to read the attr_avp
to get such specific information.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">For the caller, I use to invoke:<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:#006FC9">$var(aorChamador) = $(ct.fields(uri));</span><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:#006FC9">lookup("location","","$var(aorChamador)");</span><span style="font-family:Calibri;color:black"><o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">However it causes amazing side effect in the SIP signaling. Ex: When A calls B, B stays quiet and A rings. So A can answer A. Crazy!<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">According to the documentation, lookup will overwritten the Request-URI. I guess that is why the SIP signaling become incoherent.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"><o:p> </o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">How could I get the caller attr specific information without side effects?<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"><o:p> </o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">Any hint will be very helpful!!<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"><o:p> </o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black">Best regards.<o:p></o:p></span></p>
<p style="background:white"><span style="font-family:Calibri;color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:Calibri;color:black">RODRIGO PIMENTA CARVALHO<br>
Inatel Competence Center<br>
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Ph: +55 35 3471 9200 RAMAL 979<o:p></o:p></span></p>
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