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<p>Dear OpenSIPS users,</p>
<p><br>
</p>
<p>Every time a SIP UAC registers in my OpenSIPS, if such agent is behind a NAT, the location record receives the NAT flag in the
<span>Cflags</span> column. My Opensips configuration file is responsible for that.</p>
<p>For example:</p>
<p><br>
</p>
<p></p>
<div>AOR:: 1000<br>
Contact:: sip:1000@192.168.21.5:59047;transport=TLS;ob Q=<br>
Expires:: 298<br>
Callid:: ec88647d89564d9b8cf112cb254d0f04<br>
Cseq:: 34066<br>
User-agent:: MicroSIP/3.11.0<br>
Received:: sip:XXXXXXXXXXXX:59047;transport=TLS<br>
State:: CS_SYNC<br>
Flags:: 0<br>
Cflags:: NAT <<=============== HERE IS THE NAT FLAG.<span style="font-family: Calibri,Arial,Helvetica,sans-serif;"><br>
<br>
<br>
Now, if a SIP INVITE arrives in my OpenSIPS, from a UAC that is behind a NAT, I need do something like this:<br>
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<span>if (<span>Cflags == NAT</span>) { <br>
</span>
<p></p>
<p><span> fix_nated_sdp("10")</span></p>
<p><span>};</span></p>
<p><span><br>
</span></p>
<p><span>What is the correct way to investigate if Cflags is equals to NAT ? I mean, how to program such check in the script file?</span></p>
<p><span><br>
</span></p>
<p><span>Any hint will be very helpful!</span></p>
<p><span><br>
</span></p>
<p><span>Best regards!<br>
</span></p>
<p><span></span><br>
</p>
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<div class="PlainText">RODRIGO PIMENTA CARVALHO<br>
Inatel Competence Center<br>
Software<br>
Ph: +55 35 3471 9200 RAMAL 979<br>
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