2ème partie
Code:
#1
U 2014/02/06 22:37:43.002894 91.121.129.20:5060 -> 192.168.1.17:5060
  SIP/2.0 100 Trying..Call-ID: 0b4784ac3a062ee653620cd871778558@sip.ovh.fr..CSeq: 103 INVITE..From: "400" <sip:0033183626986@sip.ovh.fr>;tag
  =as04af75a1..To: <sip:0148734812@sip.ovh.fr>..Via: SIP/2.0/UDP 192.168.1.17:5060;received=89.83.76.95;rport=5060;branch=z9hG4bK18176b4a..C
  ontent-Length: 0....                                                                                                                      
#
U 2014/02/06 22:37:44.143577 91.121.129.20:5060 -> 192.168.1.17:5060
  SIP/2.0 180 Ringing..Call-ID: 0b4784ac3a062ee653620cd871778558@sip.ovh.fr..Contact: <sip:10.7.1.65:5060>..Content-Type: application/sdp..C
  Seq: 103 INVITE..From: "400" <sip:0033183626986@sip.ovh.fr>;tag=as04af75a1..Record-Route: <sip:91.121.129.20:5060;transport=udp;lr>..To: <
  sip:0148734812@sip.ovh.fr>;tag=00-08179-013e5730-4d9162956..Via: SIP/2.0/UDP 192.168.1.17:5060;received=89.83.76.95;rport=5060;branch=z9hG
  4bK18176b4a..Allow: UPDATE,REFER,INFO..Server: Cirpack/v4.56 (gw_sip)..Content-Length: 265....v=0..o=cp10 139172266333 139172266334 IN IP4
   10.7.1.129..s=SIP Call..c=IN IP4 91.121.129.140..t=0 0..m=audio 33768 RTP/AVP 0 8 101..b=AS:77..a=rtpmap:0 PCMU/8000/1..a=rtpmap:8 PCMA/8
  000/1..a=rtpmap:101 telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..                                                       
#
U 2014/02/06 22:37:44.144378 192.168.1.17:5060 -> 192.168.1.6:11340
  SIP/2.0 180 Ringing..Via: SIP/2.0/UDP 192.168.1.6:11340;branch=z9hG4bK822768107;received=192.168.1.6;rport=11340..From: "400" <sip:400@192
  .168.1.17>;tag=1168804521..To: <sip:0148734812@192.168.1.17>;tag=as7f6c0952..Call-ID: 1392563310-11340-5@BJC.BGI.B.G..CSeq: 40 INVITE..Ser
  ver: Asterisk PBX 10.7.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH..Supported: replaces, timer..C
  ontact: <sip:0148734812@192.168.1.17:5060>..Content-Length: 0....                                                                         
#
U 2014/02/06 22:37:44.144650 192.168.1.17:5060 -> 192.168.1.6:11340
  SIP/2.0 183 Session Progress..Via: SIP/2.0/UDP 192.168.1.6:11340;branch=z9hG4bK822768107;received=192.168.1.6;rport=11340..From: "400" <si
  p:400@192.168.1.17>;tag=1168804521..To: <sip:0148734812@192.168.1.17>;tag=as7f6c0952..Call-ID: 1392563310-11340-5@BJC.BGI.B.G..CSeq: 40 IN
  VITE..Server: Asterisk PBX 10.7.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH..Supported: replaces,
   timer..Contact: <sip:0148734812@192.168.1.17:5060>..Content-Type: application/sdp..Content-Length: 204....v=0..o=root 131959022 131959022
   IN IP4 192.168.1.17..s=Asterisk PBX 10.7.0..c=IN IP4 192.168.1.17..t=0 0..m=audio 14850 RTP/AVP 8..a=rtpmap:8 PCMA/8000..a=silenceSupp:of
  f - - - -..a=ptime:20..a=sendrecv..                                                                                                       
#
U 2014/02/06 22:37:49.122047 91.121.129.20:5060 -> 192.168.1.17:5060
  SIP/2.0 200 OK..Call-ID: 0b4784ac3a062ee653620cd871778558@sip.ovh.fr..Contact: <sip:10.7.1.65:5060>..Content-Type: application/sdp..CSeq: 
  103 INVITE..From: "400" <sip:0033183626986@sip.ovh.fr>;tag=as04af75a1..Record-Route: <sip:91.121.129.20:5060;transport=udp;lr>..To: <sip:0
  148734812@sip.ovh.fr>;tag=00-08179-013e5730-4d9162956..Via: SIP/2.0/UDP 192.168.1.17:5060;received=89.83.76.95;rport=5060;branch=z9hG4bK18
  176b4a..Allow: UPDATE,REFER,INFO..Server: Cirpack/v4.56 (gw_sip)..Content-Length: 265....v=0..o=cp10 139172266333 139172266334 IN IP4 10.7
  .1.129..s=SIP Call..c=IN IP4 91.121.129.140..t=0 0..m=audio 33768 RTP/AVP 0 8 101..b=AS:77..a=rtpmap:0 PCMU/8000/1..a=rtpmap:8 PCMA/8000/1
  ..a=rtpmap:101 telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..                                                            
#
U 2014/02/06 22:37:49.122421 192.168.1.17:5060 -> 91.121.129.20:5060
  ACK sip:10.7.1.65:5060 SIP/2.0..Via: SIP/2.0/UDP 89.83.76.95:5060;branch=z9hG4bK7c3ee909;rport..Route: <sip:91.121.129.20:5060;transport=u
  dp;lr>..Max-Forwards: 70..From: "400" <sip:0033183626986@sip.ovh.fr>;tag=as04af75a1..To: <sip:0148734812@sip.ovh.fr>;tag=00-08179-013e5730
  -4d9162956..Contact: <sip:0033183626986@89.83.76.95:5060>..Call-ID: 0b4784ac3a062ee653620cd871778558@sip.ovh.fr..CSeq: 103 ACK..User-Agent
  : Asterisk PBX 10.7.0..Content-Length: 0....                                                                                              
#
U 2014/02/06 22:37:49.122846 192.168.1.17:5060 -> 192.168.1.6:11340
  SIP/2.0 200 OK..Via: SIP/2.0/UDP 192.168.1.6:11340;branch=z9hG4bK822768107;received=192.168.1.6;rport=11340..From: "400" <sip:400@192.168.
  1.17>;tag=1168804521..To: <sip:0148734812@192.168.1.17>;tag=as7f6c0952..Call-ID: 1392563310-11340-5@BJC.BGI.B.G..CSeq: 40 INVITE..Server: 
  Asterisk PBX 10.7.0..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH..Supported: replaces, timer..Contac
  t: <sip:0148734812@192.168.1.17:5060>..Content-Type: application/sdp..Content-Length: 204....v=0..o=root 131959022 131959023 IN IP4 192.16
  8.1.17..s=Asterisk PBX 10.7.0..c=IN IP4 192.168.1.17..t=0 0..m=audio 14850 RTP/AVP 8..a=rtpmap:8 PCMA/8000..a=silenceSupp:off - - - -..a=p
  time:20..a=sendrecv..                                                                                                                     
#
U 2014/02/06 22:37:49.169104 192.168.1.6:11340 -> 192.168.1.17:5060
  ACK sip:0148734812@192.168.1.17:5060 SIP/2.0..Via: SIP/2.0/UDP 192.168.1.6:11340;branch=z9hG4bK194309984;rport..From: "400" <sip:400@192.1
  68.1.17>;tag=1168804521..To: <sip:0148734812@192.168.1.17>;tag=as7f6c0952..Call-ID: 1392563310-11340-5@BJC.BGI.B.G..CSeq: 40 ACK..Contact:
   <sip:400@192.168.1.6:11340>..X-Grandstream-PBX: true..Max-Forwards: 70..Supported: replaces, path, timer..User-Agent: Grandstream GXP2140
   1.0.0.17..Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE..Content-Length: 0....               
#
U 2014/02/06 22:37:49.610384 91.121.129.20:5060 -> 192.168.1.17:5060
  SIP/2.0 200 OK..Call-ID: 0b4784ac3a062ee653620cd871778558@sip.ovh.fr..Contact: <sip:10.7.1.65:5060>..Content-Type: application/sdp..CSeq: 
  103 INVITE..From: "400" <sip:0033183626986@sip.ovh.fr>;tag=as04af75a1..Record-Route: <sip:91.121.129.20:5060;transport=udp;lr>..To: <sip:0
  148734812@sip.ovh.fr>;tag=00-08179-013e5730-4d9162956..Via: SIP/2.0/UDP 192.168.1.17:5060;received=89.83.76.95;rport=5060;branch=z9hG4bK18
  176b4a..Allow: UPDATE,REFER,INFO..Server: Cirpack/v4.56 (gw_sip)..Content-Length: 265....v=0..o=cp10 139172266333 139172266334 IN IP4 10.7
  .1.129..s=SIP Call..c=IN IP4 91.121.129.140..t=0 0..m=audio 33768 RTP/AVP 0 8 101..b=AS:77..a=rtpmap:0 PCMU/8000/1..a=rtpmap:8 PCMA/8000/1
  ..a=rtpmap:101 telephone-event/8000..a=fmtp:101 0-15..a=ptime:30..a=sendrecv..                                                            
#
U 2014/02/06 22:37:49.610763 192.168.1.17:5060 -> 91.121.129.20:5060
  ACK sip:10.7.1.65:5060 SIP/2.0..Via: SIP/2.0/UDP 89.83.76.95:5060;branch=z9hG4bK444e6cfe;rport..Route: <sip:91.121.129.20:5060;transport=u
  dp;lr>..Max-Forwards: 70..From: "400" <sip:0033183626986@sip.ovh.fr>;tag=as04af75a1..To: <sip:0148734812@sip.ovh.fr>;tag=00-08179-013e5730
  -4d9162956..Contact: <sip:0033183626986@89.83.76.95:5060>..Call-ID: 0b4784ac3a062ee653620cd871778558@sip.ovh.fr..CSeq: 103 ACK..User-Agent
  : Asterisk PBX 10.7.0..Content-Length: 0....                                                                                              
#