[root@LinuxDPP ~]# ngrep -W byline -t port 5060 interface: eth0 (192.168.10.0/255.255.255.0) filter: (ip) and ( port 5060 ) # U 2005/12/21 17:45:56.147290 83.175.204.142:1025 -> 192.168.10.93:5060 INVITE sip:669086199@192.168.10.93:5060;user=phone SIP/2.0. From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: . Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 INVITE. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1ef-7ca42-495b. Max-Forwards: 70. Supported: replaces. User-Agent: SIP Phone. Contact: . Content-Type: application/SDP. Content-Length: 262. . v=0. o=SIP302 12367 0 IN IP4 192.168.10.91. s=SIP302 Session. c=IN IP4 83.175.204.142. t=0 0. m=audio 16384 RTP/AVP 18 4 0 0. a=ptime:20. a=ptime:30. a=ptime:20. a=ptime:0. a=rtpmap:18 G729/8000. a=rtpmap:4 G723/8000. a=rtpmap:0 PCMU/8000. a=rtpmap:0 PCMU/8000. # U 2005/12/21 17:45:56.168527 192.168.10.93:5060 -> 83.175.204.142:1025 SIP/2.0 100 trying -- your call is important to us. From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: . Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 INVITE. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1ef-7ca42-495b. Content-Length: 0. Warning: 392 192.168.10.93:5060 "Noisy feedback tells: pid=3909 req_src_ip=83.175.204.142 req_src_port=1025 in_uri=sip:669086199@192.168.10.93:5060;user=phone out_uri=sip:669086199@195.219.74.166:5060;user=phone via_cnt==1". . # U 2005/12/21 17:45:56.169244 192.168.10.93:5060 -> 195.219.74.166:5060 INVITE sip:669086199@195.219.74.166:5060;user=phone SIP/2.0. Record-Route: . From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: . Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 INVITE. Via: SIP/2.0/UDP 192.168.10.93;branch=z9hG4bKd6af.aaf5bbe7.0. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1ef-7ca42-495b. Max-Forwards: 69. Supported: replaces. User-Agent: SIP Phone. Contact: . Content-Type: application/SDP. Content-Length: 262. . v=0. o=SIP302 12367 0 IN IP4 192.168.10.91. s=SIP302 Session. c=IN IP4 83.175.204.142. t=0 0. m=audio 16384 RTP/AVP 18 4 0 0. a=ptime:20. a=ptime:30. a=ptime:20. a=ptime:0. a=rtpmap:18 G729/8000. a=rtpmap:4 G723/8000. a=rtpmap:0 PCMU/8000. a=rtpmap:0 PCMU/8000. # U 2005/12/21 17:45:56.507603 195.219.74.166:5060 -> 192.168.10.93:5060 SIP/2.0 100 Trying. Via: SIP/2.0/UDP 192.168.10.93;branch=z9hG4bKd6af.aaf5bbe7.0. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1ef-7ca42-495b. Record-Route: . From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: . Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 INVITE. Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER. Content-Length: 0. . # U 2005/12/21 17:46:01.709394 195.219.74.166:5060 -> 192.168.10.93:5060 SIP/2.0 180 Ringing. Via: SIP/2.0/UDP 192.168.10.93;branch=z9hG4bKd6af.aaf5bbe7.0. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1ef-7ca42-495b. Record-Route: . From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: ;tag=937175270. Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 INVITE. Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER. Content-Type: application/sdp. Content-Length: 187. . v=0. o=- 134 1 IN IP4 195.219.74.166. s=-. c=IN IP4 195.219.74.166. t=0 0. m=audio 29000 RTP/AVP 4 96. a=rtpmap:4 G723/8000. a=ptime:60. a=rtpmap:96 telephone-event/8000. a=fmtp:96 0-15. # U 2005/12/21 17:46:01.715602 192.168.10.93:5060 -> 83.175.204.142:1025 SIP/2.0 180 Ringing. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1ef-7ca42-495b. Record-Route: . From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: ;tag=937175270. Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 INVITE. Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER. Content-Type: application/sdp. Content-Length: 187. . v=0. o=- 134 1 IN IP4 195.219.74.166. s=-. c=IN IP4 195.219.74.166. t=0 0. m=audio 29000 RTP/AVP 4 96. a=rtpmap:4 G723/8000. a=ptime:60. a=rtpmap:96 telephone-event/8000. a=fmtp:96 0-15. # U 2005/12/21 17:46:03.718973 195.219.74.166:5060 -> 192.168.10.93:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP 192.168.10.93;branch=z9hG4bKd6af.aaf5bbe7.0. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1ef-7ca42-495b. Record-Route: . From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: ;tag=937175270. Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 INVITE. Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER. Contact: . Content-Type: application/sdp. Content-Length: 187. . v=0. o=- 134 1 IN IP4 195.219.74.166. s=-. c=IN IP4 195.219.74.166. t=0 0. m=audio 29000 RTP/AVP 4 96. a=rtpmap:4 G723/8000. a=ptime:60. a=rtpmap:96 telephone-event/8000. a=fmtp:96 0-15. # U 2005/12/21 17:46:03.726139 192.168.10.93:5060 -> 83.175.204.142:1025 SIP/2.0 200 OK. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1ef-7ca42-495b. Record-Route: . From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: ;tag=937175270. Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 INVITE. Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER. Contact: . Content-Type: application/sdp. Content-Length: 187. . v=0. o=- 134 1 IN IP4 195.219.74.166. s=-. c=IN IP4 195.219.74.166. t=0 0. m=audio 29000 RTP/AVP 4 96. a=rtpmap:4 G723/8000. a=ptime:60. a=rtpmap:96 telephone-event/8000. a=fmtp:96 0-15. # U 2005/12/21 17:46:03.880319 83.175.204.142:1025 -> 192.168.10.93:5060 ACK sip:34669086199@195.219.74.166 SIP/2.0. From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: ;tag=937175270. Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 ACK. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1f7-7e888-25f8. Max-Forwards: 70. User-Agent: SIP Phone. Contact: . Route: . Content-Length: 0. . # U 2005/12/21 17:46:03.896380 192.168.10.93:5060 -> 195.219.74.166:5060 ACK sip:34669086199@195.219.74.166 SIP/2.0. Record-Route: . From: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. To: ;tag=937175270. Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 1 ACK. Via: SIP/2.0/UDP 192.168.10.93;branch=0. Via: SIP/2.0/UDP 83.175.204.142:1025;branch=z9hG4bK-1f7-7e888-25f8. Max-Forwards: 69. User-Agent: SIP Phone. Contact: . Content-Length: 0. P-hint: rr-enforced. . # U 2005/12/21 17:46:06.677243 195.219.74.166:5060 -> 192.168.10.93:5060 BYE sip:911211389@192.168.10.93 SIP/2.0. Via: SIP/2.0/UDP 195.219.74.166:5060;branch=1. From: ;tag=937175270. To: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. Contact: . Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 2 BYE. Allow: INVITE,ACK,CANCEL,BYE,UPDATE,REGISTER. Content-Length: 0. . # U 2005/12/21 17:46:07.082683 192.168.10.93:5060 -> 195.219.74.166:5060 SIP/2.0 483 Too Many Hops. Via: SIP/2.0/UDP 195.219.74.166:5060;branch=1. From: ;tag=937175270. To: "911211389";tag=c0a80a5b-13c4-1ef-7ca38-206a. Call-ID: 8057fe48-c0a80a5b-13c4-1ef-7ca38-450c@83.175.204.140. CSeq: 2 BYE. Content-Length: 0. Warning: 392 192.168.10.93:5060 "Noisy feedback tells: pid=3909 req_src_ip=192.168.10.93 req_src_port=5060 in_uri=sip:911211389@192.168.10.93 out_uri=sip:911211389@192.168.10.93 via_cnt==12". . exit 15 received, 0 dropped