Thank Daniel,<div>It means that to SIP OPTIONS keepalives I just need to add #!define <span style="color:rgb(0,123,53)">WITH_NATSIPPING in cfg file?</span></div><div><br></div><div>Thanks,</div><div>Nhan</div><div><br>On Thursday, June 8, 2017, Daniel-Constantin Mierla &lt;<a href="mailto:miconda@gmail.com">miconda@gmail.com</a>&gt; wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
<br>
On 08.06.17 12:57, Nguyen Tran Nhan wrote:<br>
&gt; I am config rtpproxy with kamailio but I am stuck at<br>
&gt; - option for NAT SIP OPTIONS keepalives: WITH_NATSIPPING<br>
&gt;<br>
&gt; It is configure in client side?<br>
&gt;<br>
this setting is to enable SIP OPTIONS keepalives from Kamailio towards<br>
SIP endpoints. It is nothing to configure in client side.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
--<br>
Daniel-Constantin Mierla<br>
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<br>
<br>
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</blockquote></div>