<div dir="ltr"><div>Good morning, or Good afternoon! It depends :-)</div><div><br></div><div>I have a standard Asterisk configuration:</div><div><br></div><div>SIP friends (phones) <-----> Asterisk <-----> SIP gateway to PSTN converter</div>
<div style>80.236.215.61 109.69.217.6 internal IP (<a href="http://10.4.0.10/255.255.255.0">10.4.0.10/255.255.255.0</a>)</div><div style><br></div><div style>When analyzing traffic on a SIP friend/phone I see this:<br>
</div><div style><br></div><div style><br></div><div style>INVITE sip:xxxx@80.236.215.61:64946;ob SIP/2.0<br></div><div style><div>Via: SIP/2.0/UDP 109.69.217.6:5060;branch=z9hG4bK52d50250;rport</div><div>Max-Forwards: 70</div>
<div>From: <<a href="mailto:sip%3Axxxx@109.69.217.6">sip:xxxx@109.69.217.6</a>>;tag=as15b47581</div><div>To: "test" <<a href="mailto:sip%3Axxxx@109.69.217.6">sip:xxxx@109.69.217.6</a>>;tag=kp1VwHD80rA9MVdBjTF4jyFIaCkrJcjh</div>
<div>Contact: <<a href="mailto:sip%3Axxxxx@109.69.217.6">sip:xxxxx@109.69.217.6</a>></div><div>Call-ID: MSMhw2bsheHWAQgHlae3O7yKQ2P9EcsM</div><div>CSeq: 102 INVITE</div><div>User-Agent: Asterisk</div><div>Require: timer</div>
<div>Session-Expires: 1800;refresher=uas</div><div>Min-SE: 90</div><div>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO</div><div>Supported: replaces, timer</div><div>Content-Type: application/sdp</div>
<div>Content-Length: 217</div><div><br></div><div>v=0</div><div>o=root 664087974 664087976 IN IP4 10.4.0.10</div><div>s=Asterisk</div><div>c=IN IP4 10.4.0.10</div><div>t=0 0</div><div>m=audio 8652 RTP/AVP 8 101</div><div>
a=rtpmap:8 PCMA/8000</div><div>a=rtpmap:101 telephone-event/8000</div><div>a=fmtp:101 0-16</div><div>a=ptime:20</div><div>a=sendrecv</div><div><br></div><div><br></div><div>My equipement IP 10.4.0.10 is visible to the user, why?<br>
</div><div><br></div><div style>Thank you,</div><div style>Mickael</div></div></div>