Hello, I first tried to communicate to internet provider but without any result. They told me I should find problem on my side. It does not seem the provider is blocking SIP, since it is working for some time and then stops. But I suspect the problem could be the NAT address change. The provider offers only some IPv6 tunnel to his network and the NAT is done probably on other property, I am not sure. But the local provider's router does not possess any ipv4 address on the external interface, only ipv6. I noticed the change now, when anonymizing the tcpdumps. But the working scenario is after reboot, so the ip address change is expected, but I cannot guarantee it does not change in time. Maybe my previous expectation it is caused by asterisk reboot was misleading. Could this be the cause? If yes, are there any means how to overcome it on the asterisk side? I attached the tcpdumps. Do you see something inconsistent in it?
By algorithms I meant when the router actively translates the sip payload to change the lan addresses to the natted one. Thanks Marek 2021-09-05 0:40 GMT+02:00, Antony Stone <[email protected]>: > On Thursday 08 July 2021 at 20:57:30, Marek Greško wrote: > >> Hello, >> >> I have an asterisk setup using pjsip. Everything used to work >> correctly until one remote site changed internet provider and thier >> router does not support sip protocol algorithms. > > I'm slightly bothered by the word "algorithms" in that comment, but I do > wonder whether it simply means that this is a connectivity provider > (possibly > a mobile phone network?) which actively blocks SIP. > > Some of them (in my experience) do this by blocking UDP port 5060, but > others > are more subtle about it, and (for example) block the authentication > responses > to a Register request, thereby meaning that UDP port 5060 is in general > accessible, but any attempt to Register to it using SIP will fail. > > Have you asked the new Internet connectivity provider whether they support > or > block SIP across their network? > > > Antony > > -- > "Remember: the S in IoT stands for Security." > > - Jan-Piet Mens > > Please reply to the list; > please *don't* CC > me. > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > Check out the new Asterisk community forum at: > https://community.asterisk.org/ > > New to Asterisk? Start here: > https://wiki.asterisk.org/wiki/display/AST/Getting+Started > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users
21:39:47.710512 IP 192.0.2.1.32260 > 198.51.100.1.5060: SIP 21:39:49.950775 IP 198.51.100.1.5060 > 192.0.2.1.32260: SIP: INVITE sip:[email protected]:32260 SIP/2.0 INVITE sip:[email protected]:32260 SIP/2.0 Via: SIP/2.0/UDP 198.51.100.1:5060;rport;branch=z9hG4bKPjf0991750-2e98-4f19-9749-c4eee08a4e37 From: <sip:[email protected]>;tag=e842dd73-cda0-45f5-81a7-a8fcc1472ac9 To: <sip:[email protected]> Contact: <sip:[email protected]:5060> Call-ID: 603c61b6-5679-452a-aafa-0436f8d8b672 CSeq: 19604 INVITE Allow: OPTIONS, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, MESSAGE, REFER Supported: 100rel, timer, replaces, norefersub, histinfo Session-Expires: 1800 Min-SE: 90 Max-Forwards: 70 User-Agent: Asterisk PBX 18.2.0 Content-Type: application/sdp Content-Length: 376 v=0 o=- 121003081 121003081 IN IP4 198.51.100.1 s=Asterisk c=IN IP4 198.51.100.1 t=0 0 m=audio 13786 RTP/AVP 8 18 97 3 4 101 a=rtpmap:8 PCMA/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:97 iLBC/8000 a=fmtp:97 mode=20 a=rtpmap:3 GSM/8000 a=rtpmap:4 G723/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=ptime:20 a=maxptime:150 a=sendrecv 21:39:50.022921 IP 192.0.2.1.32260 > 198.51.100.1.5060: SIP: SIP/2.0 100 Trying SIP/2.0 100 Trying Via: SIP/2.0/UDP 198.51.100.1:5060;rport=5060;branch=z9hG4bKPjf0991750-2e98-4f19-9749-c4eee08a4e37 From: <sip:[email protected]>;tag=e842dd73-cda0-45f5-81a7-a8fcc1472ac9 To: <sip:[email protected]>;tag=1427222172 Call-ID: 603c61b6-5679-452a-aafa-0436f8d8b672 CSeq: 19604 INVITE Contact: <sip:[email protected]:5060> User-Agent: A540 IP/42.247.00.000.000 Content-Length: 0 21:39:50.559818 IP 192.0.2.1.32260 > 198.51.100.1.5060: SIP 21:39:50.563295 IP 192.0.2.1.32260 > 198.51.100.1.5060: SIP 21:39:50.568182 IP 192.0.2.1.32260 > 198.51.100.1.5060: SIP: SIP/2.0 180 Ringing SIP/2.0 180 Ringing Via: SIP/2.0/UDP 198.51.100.1:5060;rport=5060;branch=z9hG4bKPjf0991750-2e98-4f19-9749-c4eee08a4e37 From: <sip:[email protected]>;tag=e842dd73-cda0-45f5-81a7-a8fcc1472ac9 To: <sip:[email protected]>;tag=1427222172 Call-ID: 603c61b6-5679-452a-aafa-0436f8d8b672 CSeq: 19604 INVITE Contact: <sip:[email protected]:5060> Allow-Events: message-summary, refer, ua-profile, talk, check-sync User-Agent: A540 IP/42.247.00.000.000 Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, SUBSCRIBE, NOTIFY, REFER, UPDATE Content-Length: 0 21:39:52.496169 IP 192.0.2.1.32260 > 198.51.100.1.5060: SIP 21:39:52.499501 IP 192.0.2.1.32260 > 198.51.100.1.5060: SIP 21:39:52.504302 IP 192.0.2.1.32260 > 198.51.100.1.5060: SIP: SIP/2.0 200 OK SIP/2.0 200 OK Via: SIP/2.0/UDP 198.51.100.1:5060;rport=5060;branch=z9hG4bKPjf0991750-2e98-4f19-9749-c4eee08a4e37 From: <sip:[email protected]>;tag=e842dd73-cda0-45f5-81a7-a8fcc1472ac9 To: <sip:[email protected]>;tag=1427222172 Call-ID: 603c61b6-5679-452a-aafa-0436f8d8b672 CSeq: 19604 INVITE Contact: <sip:[email protected]:5060> Supported: replaces Allow-Events: message-summary, refer, ua-profile, talk, check-sync Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, SUBSCRIBE, NOTIFY, REFER, UPDATE Content-Type: application/sdp Content-Length: 212 v=0 o=999 5016 14 IN IP4 192.168.100.235 s=Mapping c=IN IP4 192.168.100.235 t=0 0 m=audio 5016 RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=sendrecv a=ptime:20 21:39:52.505359 IP 198.51.100.1.5060 > 192.0.2.1.32260: SIP: ACK sip:[email protected]:32260 SIP/2.0 ACK sip:[email protected]:32260 SIP/2.0 Via: SIP/2.0/UDP 198.51.100.1:5060;rport;branch=z9hG4bKPja6adc630-330e-4649-9034-960a278aa12a From: <sip:[email protected]>;tag=e842dd73-cda0-45f5-81a7-a8fcc1472ac9 To: <sip:[email protected]>;tag=1427222172 Call-ID: 603c61b6-5679-452a-aafa-0436f8d8b672 CSeq: 19604 ACK Max-Forwards: 70 User-Agent: Asterisk PBX 18.2.0 Content-Length: 0 21:39:52.539610 IP 198.51.100.1.13786 > 192.168.100.235.5016: UDP, length 172 21:39:52.559490 IP 198.51.100.1.13786 > 192.168.100.235.5016: UDP, length 172 21:39:52.579581 IP 198.51.100.1.13786 > 192.168.100.235.5016: UDP, length 172 21:39:52.599528 IP 198.51.100.1.13786 > 192.168.100.235.5016: UDP, length 172 21:39:52.612633 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.619622 IP 198.51.100.1.13786 > 192.168.100.235.5016: UDP, length 172 21:39:52.633573 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.639693 IP 198.51.100.1.13786 > 192.168.100.235.5016: UDP, length 172 21:39:52.651777 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.659556 IP 198.51.100.1.13786 > 192.168.100.235.5016: UDP, length 172 21:39:52.671678 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.679609 IP 198.51.100.1.13786 > 192.168.100.235.5016: UDP, length 172 21:39:52.692627 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.699543 IP 198.51.100.1.13786 > 192.0.2.1.32327: UDP, length 172 21:39:52.713069 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.719550 IP 198.51.100.1.13786 > 192.0.2.1.32327: UDP, length 172 21:39:52.731842 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.739666 IP 198.51.100.1.13786 > 192.0.2.1.32327: UDP, length 172 21:39:52.752434 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.759590 IP 198.51.100.1.13786 > 192.0.2.1.32327: UDP, length 172 21:39:52.772686 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.779491 IP 198.51.100.1.13786 > 192.0.2.1.32327: UDP, length 172 21:39:52.792644 IP 192.0.2.1.32327 > 198.51.100.1.13786: UDP, length 172 21:39:52.799528 IP 198.51.100.1.13786 > 192.0.2.1.32327: UDP, length 172
21:29:24.345269 IP 198.51.100.1.5060 > 192.0.2.2.25298: SIP: INVITE sip:[email protected]:25298 SIP/2.0 INVITE sip:[email protected]:25298 SIP/2.0 Via: SIP/2.0/UDP 198.51.100.1:5060;rport;branch=z9hG4bKPjbdb7de30-4d69-4c60-ae04-405caf5da075 From: <sip:[email protected]>;tag=80639a91-53b2-4357-8137-799dbc0c956d To: <sip:[email protected]> Contact: <sip:[email protected]:5060> Call-ID: 3a7d5923-3863-42f9-9164-c3e41a033c81 CSeq: 27260 INVITE Allow: OPTIONS, REGISTER, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, MESSAGE, REFER Supported: 100rel, timer, replaces, norefersub, histinfo Session-Expires: 1800 Min-SE: 90 Max-Forwards: 70 User-Agent: Asterisk PBX 18.2.0 Content-Type: application/sdp Content-Length: 376 v=0 o=- 579906816 579906816 IN IP4 198.51.100.1 s=Asterisk c=IN IP4 198.51.100.1 t=0 0 m=audio 18892 RTP/AVP 8 18 97 3 4 101 a=rtpmap:8 PCMA/8000 a=rtpmap:18 G729/8000 a=fmtp:18 annexb=no a=rtpmap:97 iLBC/8000 a=fmtp:97 mode=20 a=rtpmap:3 GSM/8000 a=rtpmap:4 G723/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=ptime:20 a=maxptime:150 a=sendrecv 21:29:24.426561 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP: SIP/2.0 100 Trying SIP/2.0 100 Trying Via: SIP/2.0/UDP 198.51.100.1:5060;rport=5060;branch=z9hG4bKPjbdb7de30-4d69-4c60-ae04-405caf5da075 From: <sip:[email protected]>;tag=80639a91-53b2-4357-8137-799dbc0c956d To: <sip:[email protected]>;tag=3464629473 Call-ID: 3a7d5923-3863-42f9-9164-c3e41a033c81 CSeq: 27260 INVITE Contact: <sip:[email protected]:5060> User-Agent: A540 IP/42.247.00.000.000 Content-Length: 0 21:29:25.458666 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP 21:29:25.467246 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP 21:29:25.467307 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP: SIP/2.0 180 Ringing SIP/2.0 180 Ringing Via: SIP/2.0/UDP 198.51.100.1:5060;rport=5060;branch=z9hG4bKPjbdb7de30-4d69-4c60-ae04-405caf5da075 From: <sip:[email protected]>;tag=80639a91-53b2-4357-8137-799dbc0c956d To: <sip:[email protected]>;tag=3464629473 Call-ID: 3a7d5923-3863-42f9-9164-c3e41a033c81 CSeq: 27260 INVITE Contact: <sip:[email protected]:5060> Allow-Events: message-summary, refer, ua-profile, talk, check-sync User-Agent: A540 IP/42.247.00.000.000 Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, SUBSCRIBE, NOTIFY, REFER, UPDATE Content-Length: 0 21:29:45.477762 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP 21:29:47.792916 IP 198.51.100.1.5060 > 192.0.2.2.25298: SIP: OPTIONS sip:[email protected]:25298 SIP/2.0 OPTIONS sip:[email protected]:25298 SIP/2.0 Via: SIP/2.0/UDP 198.51.100.1:5060;rport;branch=z9hG4bKPj2beb0270-0f5b-43a7-b600-11f2eeba2bda From: <sip:[email protected]>;tag=df519730-4d27-4b3f-80b2-e566be692d19 To: <sip:[email protected]> Contact: <sip:[email protected]:5060> Call-ID: 06666a3a-0d1c-4575-8a6f-e4440f5776a8 CSeq: 58522 OPTIONS Max-Forwards: 70 User-Agent: Asterisk PBX 18.2.0 Content-Length: 0 21:29:47.836190 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP: SIP/2.0 486 Busy Here SIP/2.0 486 Busy Here Via: SIP/2.0/UDP 198.51.100.1:5060;rport=5060;branch=z9hG4bKPj2beb0270-0f5b-43a7-b600-11f2eeba2bda From: <sip:[email protected]>;tag=df519730-4d27-4b3f-80b2-e566be692d19 To: <sip:[email protected]> Call-ID: 06666a3a-0d1c-4575-8a6f-e4440f5776a8 CSeq: 58522 OPTIONS User-Agent: A540 IP/42.247.00.000.000 Content-Length: 0 21:29:51.851158 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP: SIP/2.0 200 OK SIP/2.0 200 OK Via: SIP/2.0/UDP 198.51.100.1:5060;rport=5060;branch=z9hG4bKPjbdb7de30-4d69-4c60-ae04-405caf5da075 From: <sip:[email protected]>;tag=80639a91-53b2-4357-8137-799dbc0c956d To: <sip:[email protected]>;tag=3464629473 Call-ID: 3a7d5923-3863-42f9-9164-c3e41a033c81 CSeq: 27260 INVITE Contact: <sip:[email protected]:5060> Supported: replaces Allow-Events: message-summary, refer, ua-profile, talk, check-sync Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, SUBSCRIBE, NOTIFY, REFER, UPDATE Content-Type: application/sdp Content-Length: 212 v=0 o=999 5010 11 IN IP4 192.168.100.235 s=Mapping c=IN IP4 192.168.100.235 t=0 0 m=audio 5010 RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=sendrecv a=ptime:20 21:29:51.852073 IP 198.51.100.1.5060 > 192.0.2.2.25298: SIP: ACK sip:[email protected]:25298 SIP/2.0 ACK sip:[email protected]:25298 SIP/2.0 Via: SIP/2.0/UDP 198.51.100.1:5060;rport;branch=z9hG4bKPj67746a27-b3cd-4ff9-96df-ed76925b19f7 From: <sip:[email protected]>;tag=80639a91-53b2-4357-8137-799dbc0c956d To: <sip:[email protected]>;tag=3464629473 Call-ID: 3a7d5923-3863-42f9-9164-c3e41a033c81 CSeq: 27260 ACK Max-Forwards: 70 User-Agent: Asterisk PBX 18.2.0 Content-Length: 0 21:29:51.902537 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:51.921804 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:51.946652 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:51.959078 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:51.961670 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:51.977839 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:51.981748 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:51.998112 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.002283 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.018310 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.018388 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP: REGISTER sip:example.com SIP/2.0 REGISTER sip:example.com SIP/2.0 Via: SIP/2.0/UDP 192.168.100.235:5060;branch=z9hG4bK60e35c64243d49794c7fe7633ddfe6d9;rport From: "999" <sip:[email protected]>;tag=3323527090 To: "999" <sip:[email protected]> Call-ID: 4293165323@192_168_100_235 CSeq: 1039 REGISTER Contact: <sip:[email protected]:5060> Max-Forwards: 70 User-Agent: A540 IP/42.247.00.000.000 Expires: 180 Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, SUBSCRIBE, NOTIFY, REFER, UPDATE Content-Length: 0 21:29:52.019229 IP 198.51.100.1.5060 > 192.0.2.2.25298: SIP: SIP/2.0 401 Unauthorized SIP/2.0 401 Unauthorized Via: SIP/2.0/UDP 192.168.100.235:5060;rport=25298;received=192.0.2.2;branch=z9hG4bK60e35c64243d49794c7fe7633ddfe6d9 Call-ID: 4293165323@192_168_100_235 From: "999" <sip:[email protected]>;tag=3323527090 To: "999" <sip:[email protected]>;tag=z9hG4bK60e35c64243d49794c7fe7633ddfe6d9 CSeq: 1039 REGISTER WWW-Authenticate: Digest realm="asterisk",nonce="...",opaque="...",algorithm=md5,qop="auth" Server: Asterisk PBX 18.2.0 Content-Length: 0 21:29:52.021720 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.038545 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.041927 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.058806 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.061721 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.077728 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP: REGISTER sip:example.com SIP/2.0 REGISTER sip:example.com SIP/2.0 Via: SIP/2.0/UDP 192.168.100.235:5060;branch=z9hG4bKe79c079d97e731a855ba2703475fb64;rport From: "999" <sip:[email protected]>;tag=3323527090 To: "999" <sip:[email protected]> Call-ID: 4293165323@192_168_100_235 CSeq: 1040 REGISTER Contact: <sip:[email protected]:5060> Authorization: Digest username="999", realm="asterisk", qop=auth, algorithm=md5, uri="sip:example.com", nonce="...", nc=..., cnonce="...", opaque="...", response="..." Max-Forwards: 70 User-Agent: A540 IP/42.247.00.000.000 Expires: 180 Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, SUBSCRIBE, NOTIFY, REFER, UPDATE Content-Length: 0 21:29:52.078963 IP 198.51.100.1.5060 > 192.0.2.2.25298: SIP: SIP/2.0 200 OK SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.100.235:5060;rport=25298;received=192.0.2.2;branch=z9hG4bKe79c079d97e731a855ba2703475fb64 Call-ID: 4293165323@192_168_100_235 From: "999" <sip:[email protected]>;tag=3323527090 To: "999" <sip:[email protected]>;tag=z9hG4bKe79c079d97e731a855ba2703475fb64 CSeq: 1040 REGISTER Date: Wed, 25 Aug 2021 19:29:52 GMT Contact: <sip:[email protected]:5060>;expires=179 Expires: 180 Server: Asterisk PBX 18.2.0 Content-Length: 0 21:29:52.079361 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.079534 IP 198.51.100.1.5060 > 192.0.2.2.25298: SIP: NOTIFY sip:[email protected]:25298 SIP/2.0 NOTIFY sip:[email protected]:25298 SIP/2.0 Via: SIP/2.0/UDP 198.51.100.1:5060;rport;branch=z9hG4bKPj5ef2e7a5-a69c-424a-aa5b-5bb6fe707c1d From: <sip:[email protected]>;tag=30a69684-6704-44d1-829a-0605b8330a95 To: <sip:[email protected]> Contact: <sip:[email protected]:5060> Call-ID: 5fe35269-6967-40c6-8dab-28a9ce8b6f9a CSeq: 24036 NOTIFY Subscription-State: terminated Event: message-summary Allow-Events: presence, dialog, message-summary, refer Max-Forwards: 70 User-Agent: Asterisk PBX 18.2.0 Content-Type: application/simple-message-summary Content-Length: 48 Messages-Waiting: no Voice-Message: 0/0 (0/0) 21:29:52.081699 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.099236 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.102360 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.118666 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.121800 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.138419 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.141817 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.146476 IP 192.0.2.2.25298 > 198.51.100.1.5060: SIP: SIP/2.0 200 OK SIP/2.0 200 OK Via: SIP/2.0/UDP 198.51.100.1:5060;rport=5060;branch=z9hG4bKPj5ef2e7a5-a69c-424a-aa5b-5bb6fe707c1d From: <sip:[email protected]>;tag=30a69684-6704-44d1-829a-0605b8330a95 To: <sip:[email protected]>;tag=21a78795-7615-55e0-938a-1714c9221a84 Call-ID: 5fe35269-6967-40c6-8dab-28a9ce8b6f9a CSeq: 24036 NOTIFY User-Agent: A540 IP/42.247.00.000.000 Content-Length: 0 21:29:52.158636 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.161696 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.178434 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.181780 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.198078 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.202375 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.218206 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.221728 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.238109 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.241778 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.257884 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.261692 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.279019 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.281761 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.301923 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.302326 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.317860 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.321715 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.341484 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.341749 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.359997 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.361690 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.378425 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.381804 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.400860 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.402425 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.419699 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.421701 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.438972 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.441744 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.458593 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.461711 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.478176 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.481711 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.498212 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.502479 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.517665 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.521650 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.538500 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.541733 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.559037 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.561836 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.580307 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.581813 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.598911 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.602448 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.621048 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.621634 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.641809 IP 198.51.100.1.18892 > 192.168.100.235.5010: UDP, length 172 21:29:52.642887 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172 21:29:52.658179 IP 192.0.2.2.25420 > 198.51.100.1.18892: UDP, length 172
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