<div dir="ltr"><p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:10pt;color:black"><font face="tahoma, sans-serif">After kamailio upgrade from v3.3 to v4.1.7</font></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:10pt;color:black"><font face="tahoma, sans-serif">in production ~5% of calls with
spirals dialog </font></span><span style="font-family:tahoma,sans-serif;color:black;font-size:10pt">are failed with wrong dialog variables in on-reply/failure
routes.</span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:10pt;color:black"><font face="tahoma, sans-serif"> </font></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:10pt;color:black"><font face="tahoma, sans-serif">The problem has been reproduced in the LAB (load test generated by
SIPP).</font></span></p><p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:tahoma,sans-serif">Please see the attached file with debug3 log.</span><span style="font-size:10pt;color:black"><font face="tahoma, sans-serif"><br></font></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-size:10pt;color:black"><font face="tahoma, sans-serif">Scenario:</font><font face="Courier New"></font></span></p>
<p class=""><span style="font-size:10pt;font-family:'Courier New';color:black"> </span><span style="font-family:monospace;color:black;font-size:10pt"> </span><span style="font-family:monospace;color:black;font-size:10pt">Proxy </span><span style="font-family:monospace;color:black;font-size:10pt"> </span><span style="font-family:monospace;color:black;font-size:10pt"> </span><span style="font-family:monospace;color:black;font-size:10pt">Location</span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> Kamailio P1 Nbr
translation Redirect</font></span></p>
<p class=""><font face="monospace"><span style="font-size:10pt;color:black"> </span><span style="color:black;font-size:10pt"> </span><span style="color:black;font-size:10pt"> </span><span style="color:black;font-size:10pt">|
INVITE</span><span style="color:black;font-size:10pt"> </span><span style="color:black;font-size:10pt">|</span><span style="color:black;font-size:10pt"> </span><span style="color:black;font-size:10pt">|</span></font></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | dlg 0x7f8f8501aba0 | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | Call-ID:(<a href="mailto:5-8286@10.25.153.150">5-8286@10.25.153.150</a>) | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> |------------------------------->| |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | 100 Trying | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | dlg 0x7f8f8501aba0 | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | Call-ID:(<a href="mailto:5-8286@10.25.153.150">5-8286@10.25.153.150</a>) | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> |<-------------------------------| |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | INVITE | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | dlg 0x7f8f8501aba0 | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | Call-ID:(<a href="mailto:5-8286@10.25.153.150">5-8286@10.25.153.150</a>) | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> |<-------------------------------| |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | 100 Trying | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | dlg 0x7f8f8501aba0 | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | Call-ID:(<a href="mailto:5-8286@10.25.153.150">5-8286@10.25.153.150</a>) | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> |------------------------------->| |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | INVITE | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | dlg 0x7f8f8501aba0 | |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | Call-ID:(<a href="mailto:5-8286@10.25.153.150">5-8286@10.25.153.150</a>) | </font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace">
|-------------------------------------------------------------->|</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | 100 Trying |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | dlg
0x7f8f8504cda0 !!!!!!!! |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | Call-ID:(<a href="mailto:5-8286@10.25.153.150">5-8286@10.25.153.150</a>)|</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace">
|<--------------------------------------------------------------|</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | 301 Moved
Permanently |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> | dlg
0x7f8f8504cda0 !!!!!!!! |</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace"> |
Call-ID:(<a href="mailto:5-8286@10.25.153.150">5-8286@10.25.153.150</a>)|</font></span></p>
<p class=""><span style="font-size:10pt;color:black"><font face="monospace">
|<--------------------------------------------------------------| </font></span></p>
<p class=""><font face="monospace"><span style="font-size:10pt;color:black"> |
|</span></font></p>
<p class=""><font face="monospace"> </font></p>
<p class=""><font face="tahoma, sans-serif">Thank you,</font></p>
<p class=""><font face="tahoma, sans-serif">Julia.</font></p></div>