root@comcerto:~# tcpdump -v -s1514 port 5060 tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 1514 bytes 12:33:38.121094 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.79.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:38.722109 IP (tos 0x68, ttl 64, id 25590, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.78.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:39.937145 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.137.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:40.236205 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1013) 192.168.0.112.5060 > 192.168.0.4.5060: SIP, length: 985 INVITE sip:528@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK1032884175 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: Call-ID: 0_885322584@192.168.0.112 CSeq: 1 INVITE Contact: Content-Type: application/sdp Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE Max-Forwards: 70 User-Agent: Yealink SIP-T21P_E2 52.84.14.7 Supported: timer Session-Expires: 300;refresher=uac Min-SE: 90 Allow-Events: talk,hold,conference,refer,check-sync Supported: replaces Content-Length: 308 v=0 o=- 20062 20062 IN IP4 192.168.0.112 s=SDP data c=IN IP4 192.168.0.112 t=0 0 m=audio 12354 RTP/AVP 18 9 106 101 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:9 G722/8000 a=rtpmap:106 iLBC/8000 a=fmtp:106 mode=30 a=ptime:20 a=sendrecv a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 12:33:40.252543 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 484) 192.168.0.4.5060 > 192.168.0.112.5060: SIP, length: 456 SIP/2.0 407 Proxy Authentication Required Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK1032884175 Proxy-Authenticate: Digest nonce="1695904420:afbc91f6ac3a291028912ed6f8175207",algorithm=MD5,realm="192.168.0.4",qop="auth,auth-int" To: ;tag=9e07b309 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4";tag=631926531 Call-ID: 0_885322584@192.168.0.112 CSeq: 1 INVITE Server: repro 1.12.0 Content-Length: 0 12:33:40.258157 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 321) 192.168.0.112.5060 > 192.168.0.4.5060: SIP, length: 293 ACK sip:528@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK1032884175 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: ;tag=9e07b309 Call-ID: 0_885322584@192.168.0.112 CSeq: 1 ACK Content-Length: 0 12:33:40.272186 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1267) 192.168.0.112.5060 > 192.168.0.4.5060: SIP, length: 1239 INVITE sip:528@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE Contact: Proxy-Authorization: Digest username="526", realm="192.168.0.4", nonce="1695904420:afbc91f6ac3a291028912ed6f8175207", uri="sip:528@192.168.0.4:5060", response="a9412c25d831b56762d4e4e2dfce2f40", algorithm=MD5, cnonce="1680616049", qop=auth, nc=00000001 Content-Type: application/sdp Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE Max-Forwards: 70 User-Agent: Yealink SIP-T21P_E2 52.84.14.7 Supported: timer Session-Expires: 300;refresher=uac Min-SE: 90 Allow-Events: talk,hold,conference,refer,check-sync Supported: replaces Content-Length: 308 v=0 o=- 20062 20062 IN IP4 192.168.0.112 s=SDP data c=IN IP4 192.168.0.112 t=0 0 m=audio 12354 RTP/AVP 18 9 106 101 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:9 G722/8000 a=rtpmap:106 iLBC/8000 a=fmtp:106 mode=30 a=ptime:20 a=sendrecv a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 12:33:40.786203 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1267) 192.168.0.112.5060 > 192.168.0.4.5060: SIP, length: 1239 INVITE sip:528@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE Contact: Proxy-Authorization: Digest username="526", realm="192.168.0.4", nonce="1695904420:afbc91f6ac3a291028912ed6f8175207", uri="sip:528@192.168.0.4:5060", response="a9412c25d831b56762d4e4e2dfce2f40", algorithm=MD5, cnonce="1680616049", qop=auth, nc=00000001 Content-Type: application/sdp Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE Max-Forwards: 70 User-Agent: Yealink SIP-T21P_E2 52.84.14.7 Supported: timer Session-Expires: 300;refresher=uac Min-SE: 90 Allow-Events: talk,hold,conference,refer,check-sync Supported: replaces Content-Length: 308 v=0 o=- 20062 20062 IN IP4 192.168.0.112 s=SDP data c=IN IP4 192.168.0.112 t=0 0 m=audio 12354 RTP/AVP 18 9 106 101 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:9 G722/8000 a=rtpmap:106 iLBC/8000 a=fmtp:106 mode=30 a=ptime:20 a=sendrecv a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 12:33:41.034195 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.112.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:41.498578 IP (tos 0x0, ttl 64, id 60435, offset 0, flags [+], proto UDP (17), length 1500) 192.168.0.4.5060 > 192.168.0.71.5060: SIP, length: 1472 INVITE sip:528@192.168.0.71:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---08d4c04d9aaea016;rport Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 Max-Forwards: 69 Record-Route: Identity: 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 Identity-Info: Contact: To: From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4";tag=631926531 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE Session-Expires: 300;refresher=uac Min-SE: 90 Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE Content-Type: application/sdp Date: Thu, 28 Sep 2023 12:33:40 GMT Supported: timer,\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00 12:33:41.507230 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 426) 192.168.0.71.5060 > 192.168.0.4.5060: SIP, length: 398 SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---08d4c04d9aaea016;rport=5060 Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE User-Agent: Yealink SIP-T21P_E2 52.84.14.1 Content-Length: 0 12:33:41.516798 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 293) 192.168.0.4.5060 > 192.168.0.112.5060: SIP, length: 265 SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 To: From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE Content-Length: 0 12:33:41.517118 IP (tos 0x0, ttl 64, id 60436, offset 0, flags [+], proto UDP (17), length 1500) 192.168.0.4.5060 > 192.168.0.71.5060: SIP, length: 1472 INVITE sip:528@192.168.0.71:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---08d4c04d9aaea016;rport Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 Max-Forwards: 69 Record-Route: Identity: sgR6vdrE5qUd8Sf01X3vEjuPCYJlnIvtdeJQNDbKU0UCt67UAJQbD3ZKjh1w+ZbtGKOzHG5Z/tlV4yne18WgOEtyHvMRvFKtYJfuZ4j1bB+Pf+2nmOtdA3zjGyZxgCVOVdnIo3fCouFCl2nIORjrZwEyKZw6Xkn6oXTwjW7HogOtCPmaqYV2hBAdyPe5LrIFWZX9qk1lUxe3/Olbz6BoEiWLaWhNiivoOS8oLsFe/tOztxYL2p3uKBJwi4Yv6AKBqFZSNvdh4nIPz+5f9pY1MKYV0W+81xCopY6q8jBhwQ7l4KN9zWr6DqonGfVw8HKtHi+ajkKRTjfzJuGmYeVExugSgcM2bnBQcAuLPQF109BX4WgEr6MVD2aja2x1yuTli+6VfvBFkZYzrJCoVwtr4LCBlNKswg12lzh0DXxIQJGo45cjtEwqMhjLfz0PcePl4KWrP2Vjq2QLUE2cp4KqJXuv3XRvB4l6BczNcCgz5JsSmlsTk0LdWkY09PxSGzXX3NkTtj3ynex0Uhk+9kDjg3pQyWhIQ/0ARdw/ZWlL0B6TnEXnOZ09/qDRT/3IK2Wu9Half4zrFPPF7wyNa5sqc5Ze2HqmxGJ3xlj4n8VFwue5sFfPWHM/Ezu8rfdhux/onasamwyJTMWFqlEMciSwpCHKW6sYhXMvMOsSnGLf0S0= Identity-Info: Contact: To: From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4";tag=631926531 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE Session-Expires: 300;refresher=uac Min-SE: 90 Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE Content-Type: application/sdp Date: Thu, 28 Sep 2023 12:33:40 GMT Supported: timer,\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00 12:33:41.584241 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 705) 192.168.0.71.5060 > 192.168.0.4.5060: SIP, length: 677 SIP/2.0 180 Ringing Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---08d4c04d9aaea016;rport=5060 Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 Record-Route: From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: ;tag=2785734918 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE Contact: Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE User-Agent: Yealink SIP-T21P_E2 52.84.14.1 Allow-Events: talk,hold,conference,refer,check-sync Content-Length: 0 12:33:41.597719 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 642) 192.168.0.4.5060 > 192.168.0.112.5060: SIP, length: 614 SIP/2.0 180 Ringing Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 Record-Route: Contact: To: ;tag=2785734918 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE Server: repro 1.12.0 User-Agent: Yealink SIP-T21P_E2 52.84.14.1 Allow-Events: talk, hold, conference, refer, check-sync Content-Length: 0 12:33:42.073235 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.127.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:42.602214 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.71.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:44.161287 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1046) 192.168.0.105.5060 > 192.168.0.4.5060: SIP, length: 1018 INVITE sip:400@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.105:5060;branch=z9hG4bK4283060246 From: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2" ;tag=3126418466 To: Call-ID: 0_2715817587@192.168.0.105 CSeq: 1 INVITE Contact: Content-Type: application/sdp Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE Max-Forwards: 70 User-Agent: Yealink SIP-T21P_E2 52.80.14.2 Supported: 100rel Supported: timer Session-Expires: 300;refresher=uac Min-SE: 90 Allow-Events: talk,hold,conference,refer,check-sync Supported: replaces Content-Length: 312 v=0 o=- 20205 20205 IN IP4 192.168.0.105 s=SDP data c=IN IP4 192.168.0.105 t=0 0 m=audio 12328 RTP/AVP 9 8 18 106 101 a=rtpmap:9 G722/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:106 iLBC/8000 a=ptime:20 a=sendrecv a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 12:33:44.177515 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 494) 192.168.0.4.5060 > 192.168.0.105.5060: SIP, length: 466 SIP/2.0 407 Proxy Authentication Required Via: SIP/2.0/UDP 192.168.0.105:5060;branch=z9hG4bK4283060246 Proxy-Authenticate: Digest nonce="1695904424:09a1f6e07e68fb508ca665cfe3cba2a7",algorithm=MD5,realm="192.168.0.4",qop="auth,auth-int" To: ;tag=e0f3d360 From: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2";tag=3126418466 Call-ID: 0_2715817587@192.168.0.105 CSeq: 1 INVITE Server: repro 1.12.0 Content-Length: 0 12:33:44.182272 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 331) 192.168.0.105.5060 > 192.168.0.4.5060: SIP, length: 303 ACK sip:400@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.105:5060;branch=z9hG4bK4283060246 From: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2" ;tag=3126418466 To: ;tag=e0f3d360 Call-ID: 0_2715817587@192.168.0.105 CSeq: 1 ACK Content-Length: 0 12:33:44.191286 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1298) 192.168.0.105.5060 > 192.168.0.4.5060: SIP, length: 1270 INVITE sip:400@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.105:5060;branch=z9hG4bK3093223425 From: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2" ;tag=3126418466 To: Call-ID: 0_2715817587@192.168.0.105 CSeq: 2 INVITE Contact: Proxy-Authorization: Digest username="527", realm="192.168.0.4", nonce="1695904424:09a1f6e07e68fb508ca665cfe3cba2a7", uri="sip:400@192.168.0.4:5060", response="8aaeb386b99efd425a00a7ee87adf90f", algorithm=MD5, cnonce="0a4f113b", qop=auth, nc=00000001 Content-Type: application/sdp Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE Max-Forwards: 70 User-Agent: Yealink SIP-T21P_E2 52.80.14.2 Supported: 100rel Supported: timer Session-Expires: 300;refresher=uac Min-SE: 90 Allow-Events: talk,hold,conference,refer,check-sync Supported: replaces Content-Length: 312 v=0 o=- 20205 20205 IN IP4 192.168.0.105 s=SDP data c=IN IP4 192.168.0.105 t=0 0 m=audio 12328 RTP/AVP 9 8 18 106 101 a=rtpmap:9 G722/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:106 iLBC/8000 a=ptime:20 a=sendrecv a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 12:33:44.715325 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 1298) 192.168.0.105.5060 > 192.168.0.4.5060: SIP, length: 1270 INVITE sip:400@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.105:5060;branch=z9hG4bK3093223425 From: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2" ;tag=3126418466 To: Call-ID: 0_2715817587@192.168.0.105 CSeq: 2 INVITE Contact: Proxy-Authorization: Digest username="527", realm="192.168.0.4", nonce="1695904424:09a1f6e07e68fb508ca665cfe3cba2a7", uri="sip:400@192.168.0.4:5060", response="8aaeb386b99efd425a00a7ee87adf90f", algorithm=MD5, cnonce="0a4f113b", qop=auth, nc=00000001 Content-Type: application/sdp Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE Max-Forwards: 70 User-Agent: Yealink SIP-T21P_E2 52.80.14.2 Supported: 100rel Supported: timer Session-Expires: 300;refresher=uac Min-SE: 90 Allow-Events: talk,hold,conference,refer,check-sync Supported: replaces Content-Length: 312 v=0 o=- 20205 20205 IN IP4 192.168.0.105 s=SDP data c=IN IP4 192.168.0.105 t=0 0 m=audio 12328 RTP/AVP 9 8 18 106 101 a=rtpmap:9 G722/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:106 iLBC/8000 a=ptime:20 a=sendrecv a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 12:33:45.334330 IP (tos 0x0, ttl 64, id 62366, offset 0, flags [DF], proto UDP (17), length 36) 192.168.0.120.5670 > 192.168.0.4.5060: SIP, length: 8 \0x00\0x00\0x00\0x00\0x00\0x00\0x00\0x00 12:33:45.338318 IP (tos 0x0, ttl 127, id 23286, offset 0, flags [none], proto UDP (17), length 30) 10.8.0.20.53018 > 192.168.0.4.5060: SIP, length: 2 12:33:45.581081 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 303) 192.168.0.4.5060 > 192.168.0.105.5060: SIP, length: 275 SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.0.105:5060;branch=z9hG4bK3093223425 To: From: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2" ;tag=3126418466 Call-ID: 0_2715817587@192.168.0.105 CSeq: 2 INVITE Content-Length: 0 12:33:45.769733 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 875) 192.168.0.4.5060 > 192.168.0.105.5060: SIP, length: 847 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.0.105:5060;branch=z9hG4bK3093223425 Record-Route: Require: timer Contact: To: ;tag=1879224193 From: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2" ;tag=3126418466 Call-ID: 0_2715817587@192.168.0.105 CSeq: 2 INVITE Session-Expires: 300;refresher=uac Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, REFER, NOTIFY, INFO, UPDATE, PRACK, SUBSCRIBE Content-Type: application/sdp Server: repro 1.12.0 Supported: replaces, timer, 100rel User-Agent: eXosip/5.2.1 Allow-Events: conference Content-Length: 187 v=0 o=gateway 0 0 IN IP4 192.168.0.4 s=conversation c=IN IP4 192.168.0.4 t=0 0 m=audio 12010 RTP/AVP 9 101 a=rtpmap:9 G722/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 12:33:45.795351 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 732) 192.168.0.105.5060 > 192.168.0.4.5060: SIP, length: 704 ACK sip:400@127.0.0.1:6060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.105:5060;branch=z9hG4bK1478929689 Route: From: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2" ;tag=3126418466 To: ;tag=1879224193 Call-ID: 0_2715817587@192.168.0.105 CSeq: 2 ACK Contact: Proxy-Authorization: Digest username="527", realm="192.168.0.4", nonce="1695904424:09a1f6e07e68fb508ca665cfe3cba2a7", uri="sip:400@192.168.0.4:5060", response="8aaeb386b99efd425a00a7ee87adf90f", algorithm=MD5, cnonce="0a4f113b", qop=auth, nc=00000001 Max-Forwards: 70 User-Agent: Yealink SIP-T21P_E2 52.80.14.2 Content-Length: 0 12:33:48.008415 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.98.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:48.093419 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.148.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:50.797459 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 469) 192.168.0.4.5060 > 192.168.0.105.5060: SIP, length: 441 BYE sip:527@192.168.0.105:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---f95458532ca58d2a;rport Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK455553037 Max-Forwards: 69 To: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2" ;tag=3126418466 From: ;tag=1879224193 Call-ID: 0_2715817587@192.168.0.105 CSeq: 2 BYE User-Agent: eXosip/5.2.1 Content-Length: 0 12:33:50.803479 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 450) 192.168.0.105.5060 > 192.168.0.4.5060: SIP, length: 422 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---f95458532ca58d2a;rport=5060 Via: SIP/2.0/UDP 127.0.0.1:6060;rport=6060;branch=z9hG4bK455553037 From: ;tag=1879224193 To: "\0xd0\0x90\0xd0\0xbb\0xd0\0xb5\0xd0\0xba\0xd1\0x81\0xd0\0xb0\0xd0\0xbd\0xd0\0xb4\0xd1\0x80 \0xd0\0x9d\0xd0\0xb0\0xd0\0xb9\0xd0\0xb4\0xd0\0xb0\0xd0\0xbd\0xd0\0xbe\0xd0\0xb2" ;tag=3126418466 Call-ID: 0_2715817587@192.168.0.105 CSeq: 2 BYE User-Agent: Yealink SIP-T21P_E2 52.80.14.2 Content-Length: 0 12:33:53.247530 IP (tos 0x68, ttl 64, id 4275, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.109.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:56.133623 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 376) 192.168.0.112.5060 > 192.168.0.4.5060: SIP, length: 348 CANCEL sip:528@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: Call-ID: 0_885322584@192.168.0.112 CSeq: 2 CANCEL Max-Forwards: 70 User-Agent: Yealink SIP-T21P_E2 52.84.14.7 Content-Length: 0 12:33:56.148965 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 324) 192.168.0.4.5060 > 192.168.0.112.5060: SIP, length: 296 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 To: ;tag=97e5eb37 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 CANCEL Server: repro 1.12.0 Content-Length: 0 12:33:56.149253 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 354) 192.168.0.4.5060 > 192.168.0.71.5060: SIP, length: 326 CANCEL sip:528@192.168.0.71:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---08d4c04d9aaea016;rport Max-Forwards: 70 To: From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4";tag=631926531 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 CANCEL Content-Length: 0 12:33:56.164618 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 375) 192.168.0.71.5060 > 192.168.0.4.5060: SIP, length: 347 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---08d4c04d9aaea016;rport=5060 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: ;tag=2785734918 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 CANCEL User-Agent: Yealink SIP-T21P_E2 52.84.14.1 Content-Length: 0 12:33:56.171611 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 452) 192.168.0.71.5060 > 192.168.0.4.5060: SIP, length: 424 SIP/2.0 487 Request Cancelled Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---08d4c04d9aaea016;rport=5060 Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: ;tag=2785734918 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE User-Agent: Yealink SIP-T21P_E2 52.84.14.1 Content-Length: 0 12:33:56.181454 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 363) 192.168.0.4.5060 > 192.168.0.71.5060: SIP, length: 335 ACK sip:528@192.168.0.71:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.4:5060;branch=z9hG4bK-524287-1---08d4c04d9aaea016;rport Max-Forwards: 70 To: ;tag=2785734918 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4";tag=631926531 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 ACK Content-Length: 0 12:33:56.187611 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 385) 192.168.0.4.5060 > 192.168.0.112.5060: SIP, length: 357 SIP/2.0 487 Request Cancelled Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 To: ;tag=2785734918 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 INVITE Server: repro 1.12.0 User-Agent: Yealink SIP-T21P_E2 52.84.14.1 Content-Length: 0 12:33:56.193608 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 323) 192.168.0.112.5060 > 192.168.0.4.5060: SIP, length: 295 ACK sip:528@192.168.0.4:5060 SIP/2.0 Via: SIP/2.0/UDP 192.168.0.112:5060;branch=z9hG4bK2153457211 From: "\0xd0\0x9d\0xd0\0xb8\0xd0\0xba\0xd0\0xb8\0xd1\0x84\0xd0\0xbe\0xd1\0x80\0xd0\0xbe\0xd0\0xb2 \0xd0\0x92\0xd0\0xbb\0xd0\0xb0\0xd0\0xb4" ;tag=631926531 To: ;tag=2785734918 Call-ID: 0_885322584@192.168.0.112 CSeq: 2 ACK Content-Length: 0 12:33:56.364621 IP (tos 0x68, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 32) 192.168.0.105.5060 > 192.168.0.4.5060: SIP, length: 4 12:33:58.348675 IP (tos 0x0, ttl 127, id 23287, offset 0, flags [none], proto UDP (17), length 30) 10.8.0.20.53018 > 192.168.0.4.5060: SIP, length: 2 42 packets captured 42 packets received by filter 0 packets dropped by kernel root@comcerto:~#