Hi all!
I try to setup an kamailio 3.2.2 that is multihomed (mhomed=1) with public and private ip addresses. It should *always* use rtpproxy for all rtp traffic.
In wireshark i see that an ACK is missing, the log shows me an error in rr module: rr [loose.c:103]: failed to parse Route HF
So my questions are: 1.) Is my NATMANAGE route logic correct? 2.) Why is the ACK dropped by kamailio (ends without transactions)? 3.) Should the SDP/contact field to the 3rd party sipserver have the public ip??? Now it becomes the private IVR ip address.
Thanks! Cheers Karsten
########################################## Kamailio public ip 222.222.222.222 Kamailio private ip 172.20.100.74 ##########################################
# RTPProxy control route[NATMANAGE] { #!ifdef WITH_NAT xlog("NATMANAGE M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n"); if (is_request()) { if(has_totag()) { if(check_route_param("nat=yes")) { setbflag(FLB_NATB); } } }
if (isbflagset(FLB_NATB)) return;
if (dst_ip == 222.222.222.222) { xlog("rtpproxy_manage ext to int\n"); rtpproxy_manage("FAEI","172.20.10.74"); } else { xlog("rtpproxy_manage int to ext\n"); rtpproxy_manage("FAIE","222.222.222.222"); }
if (is_request()) { if (!has_totag()) { add_rr_param(";nat=yes"); } } if (is_reply()) { if(isbflagset(FLB_NATB)) { fix_nated_contact(); } } #!endif return; }
########################################## Kamailio public ip 222.222.222.222 Kamailio private ip 172.20.100.74 IVR ip 172.20.100.61 ##########################################
U 2012/04/04 14:05:59.918472 217.10.79.9:5060 -> 222.222.222.222:5060 INVITE sip:kalkbrenner@222.222.222.222:5060 SIP/2.0. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;received=217.10.68.226;branch=z9hG4bK703f9495. Via: SIP/2.0/UDP 217.10.67.13:5060;received=217.10.67.13;branch=z9hG4bK703f9495;rport=5060. Max-Forwards: 67. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de. Contact: sip:alice@217.10.67.13. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO. Supported: replaces, timer. Content-Type: application/sdp. Content-Length: 428. . v=0. o=root 1567926566 1567926566 IN IP4 217.10.67.13. s=sipgate VoIP GW. c=IN IP4 217.10.67.13. t=0 0. m=audio 17430 RTP/AVP 8 0 3 97 18 112 101. a=rtpmap:8 PCMA/8000. a=rtpmap:0 PCMU/8000. a=rtpmap:3 GSM/8000. a=rtpmap:97 iLBC/8000. a=fmtp:97 mode=30. a=rtpmap:18 G729/8000. a=fmtp:18 annexb=no. a=rtpmap:112 G726-32/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. a=ptime:20. a=sendrecv.
U 2012/04/04 14:05:59.919629 222.222.222.222:5060 -> 217.10.79.9:5060 SIP/2.0 100 trying -- your call is important to us. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;received=217.10.68.226;branch=z9hG4bK703f9495. Via: SIP/2.0/UDP 217.10.67.13:5060;received=217.10.67.13;branch=z9hG4bK703f9495;rport=5060. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Server: Kamailio. Content-Length: 0. Warning: 392 222.222.222.222:5060 "Noisy feedback tells: pid=12262 req_src_ip=217.10.79.9 req_src_port=5060 in_uri=sip:kalkbrenner@222.222.222.222:5060 out_uri=sip:kalkbrenner@172.20.100.61 via_cnt==4". .
U 2012/04/04 14:05:59.921070 172.20.100.74:5060 -> 172.20.100.61:5060 INVITE sip:kalkbrenner@172.20.100.61 SIP/2.0. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Via: SIP/2.0/UDP 172.20.100.74;branch=z9hG4bK6021.34ce1643.0. Via: SIP/2.0/UDP 217.10.79.9:5060;rport=5060;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;received=217.10.68.226;branch=z9hG4bK703f9495. Via: SIP/2.0/UDP 217.10.67.13:5060;received=217.10.67.13;branch=z9hG4bK703f9495;rport=5060. Max-Forwards: 66. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de. Contact: sip:alice@217.10.67.13. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO. Supported: replaces, timer. Content-Type: application/sdp. Content-Length: 448. . v=0. o=root 1567926566 1567926566 IN IP4 222.222.222.222. s=sipgate VoIP GW. c=IN IP4 222.222.222.222. t=0 0. m=audio 47798 RTP/AVP 8 0 3 97 18 112 101. a=rtpmap:8 PCMA/8000. a=rtpmap:0 PCMU/8000. a=rtpmap:3 GSM/8000. a=rtpmap:97 iLBC/8000. a=fmtp:97 mode=30. a=rtpmap:18 G729/8000. a=fmtp:18 annexb=no. a=rtpmap:112 G726-32/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101
U 2012/04/04 14:05:59.925396 172.20.100.61:5060 -> 172.20.100.74:5060 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 172.20.100.74;branch=z9hG4bK6021.34ce1643.0. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 0. .
U 2012/04/04 14:05:59.966415 172.20.100.61:5060 -> 172.20.100.74:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 172.20.100.74;branch=z9hG4bK6021.34ce1643.0. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 218. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 172.20.100.61. s=-. c=IN IP4 172.20.100.71. t=0 0. m=audio 19512 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20.
U 2012/04/04 14:05:59.966775 222.222.222.222:5060 -> 217.10.79.9:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 236. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 222.222.222.222. s=-. c=IN IP4 222.222.222.222. t=0 0. m=audio 52564 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. a=nortpproxy:yes.
U 2012/04/04 14:06:00.009715 217.10.79.9:5060 -> 222.222.222.222:5060 ACK sip:222.222.222.222:5060 SIP/2.0. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.3. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.3. Via: SIP/2.0/UDP 217.10.79.9:5060;received=217.10.68.226;branch=z9hG4bK55e1bf7a. Via: SIP/2.0/UDP 217.10.67.13:5060;received=217.10.67.13;branch=z9hG4bK55e1bf7a;rport=5060. Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes,sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Max-Forwards: 67. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Contact: sip:alice@217.10.67.13. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 ACK. Content-Length: 0. X-hint: rr-enforced. .
U 2012/04/04 14:06:00.467283 172.20.100.61:5060 -> 172.20.100.74:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 172.20.100.74;branch=z9hG4bK6021.34ce1643.0. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 218. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 172.20.100.61. s=-. c=IN IP4 172.20.100.71. t=0 0. m=audio 19512 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20.
U 2012/04/04 14:06:00.467915 222.222.222.222:5060 -> 217.10.79.9:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 236. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 222.222.222.222. s=-. c=IN IP4 222.222.222.222. t=0 0. m=audio 52564 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. a=nortpproxy:yes.
U 2012/04/04 14:06:01.468092 172.20.100.61:5060 -> 172.20.100.74:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 172.20.100.74;branch=z9hG4bK6021.34ce1643.0. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 218. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 172.20.100.61. s=-. c=IN IP4 172.20.100.71. t=0 0. m=audio 19512 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20.
U 2012/04/04 14:06:01.469460 222.222.222.222:5060 -> 217.10.79.9:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 236. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 222.222.222.222. s=-. c=IN IP4 222.222.222.222. t=0 0. m=audio 52564 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. a=nortpproxy:yes.
U 2012/04/04 14:06:03.468631 172.20.100.61:5060 -> 172.20.100.74:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 172.20.100.74;branch=z9hG4bK6021.34ce1643.0. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 218. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 172.20.100.61. s=-. c=IN IP4 172.20.100.71. t=0 0. m=audio 19512 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20.
U 2012/04/04 14:06:03.472282 222.222.222.222:5060 -> 217.10.79.9:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 236. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 222.222.222.222. s=-. c=IN IP4 222.222.222.222. t=0 0. m=audio 52564 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20. a=nortpproxy:yes.
U 2012/04/04 14:06:07.469772 172.20.100.61:5060 -> 172.20.100.74:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 172.20.100.74;branch=z9hG4bK6021.34ce1643.0. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 218. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 172.20.100.61. s=-. c=IN IP4 172.20.100.71. t=0 0. m=audio 19512 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20.
U 2012/04/04 14:06:07.470020 172.20.100.74:5060 -> 217.10.79.9:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 218. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 172.20.100.61. s=-. c=IN IP4 172.20.100.71. t=0 0. m=audio 19512 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20.
U 2012/04/04 14:06:11.470798 172.20.100.61:5060 -> 172.20.100.74:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 172.20.100.74;branch=z9hG4bK6021.34ce1643.0. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 218. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 172.20.100.61. s=-. c=IN IP4 172.20.100.71. t=0 0. m=audio 19512 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20.
U 2012/04/04 14:06:11.471041 172.20.100.74:5060 -> 217.10.79.9:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 218. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 172.20.100.61. s=-. c=IN IP4 172.20.100.71. t=0 0. m=audio 19512 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20.
U 2012/04/04 14:06:13.282635 217.247.216.82:12780 -> 222.222.222.222:5060 . . ..............
U 2012/04/04 14:06:15.468037 172.20.100.61:5060 -> 172.20.100.74:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 172.20.100.74;branch=z9hG4bK6021.34ce1643.0. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd3aff-40a69134. Call-ID: 2d9296f200e0212711db47c036e68917@sipgate.de. CSeq: 102 INVITE. Content-Length: 218. Content-Type: application/sdp. Record-Route: sip:172.20.100.74;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:222.222.222.222;r2=on;lr=on;ftag=as0ebb1d67;nat=yes. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Record-Route: sip:172.20.40.2;lr=on. Record-Route: sip:217.10.79.9;lr;ftag=as0ebb1d67. Supported: replaces. Supported: 100rel. Allow: INVITE. Allow: ACK. Allow: BYE. Allow: CANCEL. Allow: OPTIONS. Allow: NOTIFY. Allow: REFER. Allow: PRACK. Allow: INFO. Allow: UPDATE. Allow: MESSAGE. Contact: sip:172.20.100.61. . v=0. o=aculab-0204CC01 1431055130 1431055130 IN IP4 172.20.100.61. s=-. c=IN IP4 172.20.100.71. t=0 0. m=audio 19512 RTP/AVP 8 101. a=rtpmap:8 PCMA/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=ptime:20.
U 2012/04/04 14:06:15.468272 172.20.100.74:5060 -> 217.10.79.9:5060 SIP/2.0 200 Ok. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK6021.0ca5d221.1;rport=5060. Via: SIP/2.0/UDP 172.20.40.2;branch=z9hG4bK6021.0ca5d221.1. Via: SIP/2.0/UDP 217.10.79.9:5060;branch=z9hG4bK703f9495;received=217.10.68.226. Via: SIP/2.0/UDP 217.10.67.13:5060;rport=5060;branch=z9hG4bK703f9495;received=217.10.67.13. From: "alice" sip:alice@sipgate.de;tag=as0ebb1d67. To: sip:bob@sipgate.de;tag=ds-46dd