U 209.133.194.194:5080 -> 192.168.1.200:5060
REGISTER sip:192.168.1.200:5060 SIP/2.0..Via: SIP/2.0/UDP 209.133.194.194:5080;branch=z9hG4bK150114a2337a4b0 c
554fdc1f;rport..From: "3009" <sip:3009@XX.XX.XXX.XXX:5060>;tag=150114a27e86..To : "3009" <sip:3009@192.168.1.2
00:5060>..Call-ID: 14a2337a-30f4b0c-554fdc1f@XX.XX.XXX.XXX..CSeq: 1 REGISTER..Contact: "3009" <sip:3009@209.1
33.194.194:5080>..User-Agent: VaxSIPUserAgent/3.1..Expires: 1800..Max-Forwards: 70..Content-Length: 0....

Voici une tentative mais je ne comprends toujours pas par ou elles passent....