<p>As i understand from</p>

<p><a href="https://github.com/kamailio/kamailio/blob/master/modules/tls/tls.cfg">https://github.com/kamailio/kamailio/blob/master/modules/tls/tls.cfg</a></p>

<h1>Special settings for the iptel.org public SIP</h1>

<h1>server. We do not verify the certificate of the</h1>

<h1>server because it can be expired. The server</h1>

<h1>implements authentication using SSL client</h1>

<h1>certificates so configure the client certificate</h1>

<h1>that was given to use by iptel.org staff here.</h1>

<p>#<br>
#[client:195.37.77.101:5061]<br>
#verify_certificate = no<br>
#certificate = ./modules/tls/iptel_client.pem<br>
#private_key = ./modules/tls/iptel_key.pem<br>
#ca_list = ./modules/tls/iptel_ca.pem<br>
#crl = ./modules/tls/iptel_crl.pem</p>

<p>this is for match with remote ip and port when kamailio acts as client.</p>

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