Not sure if this is related, but I've also run into issues with track_cseq_updates: https://www.mail-archive.com/[email protected]/msg12362.html
More specifically, kamailio won't process the 100 Trying to an Cseq-bumped INVITE it generated itself with uac_auth() when track_cseq_updates is on. This implementation appears to be a little too fragile for the time being.... BR, George On Thu, 17 Dec 2020 at 12:29, Terry Tailor <[email protected]> wrote: > Hi, Here is setup details > Kamailio Proxy a <-----> Kamailio Proxy b <-----> Asterisk > Kamailio proxy b auth based on IP Kamailio Proxy a > 1. Kamailio proxy sends an Invite request to Kamailio proxy b with CSeq: > 102 INVITE > 2. Kamailio proxy b check again IP auth and sends invite request to > asterisk with CSeq: 102 INVITE > 4 asterisk response with 401 Unauthorized with CSeq: 102 > 5. Kamailio proxy b sends ACK request with CSeq: 102 ACK > 6. Kamailio proxy b sends INVITE request with CSeq: 103 INVITE > 7. Asterisk sends 100 trying and 180 ringing with CSeq: 103 INVITE > 8. Kamailio proxy b relay 180 ringing with CSeq: 102 INVITE > 9. Asterisk send 200 Ok with CSeq: 103 INVITE and proxy b relay it to > proxy a with CSeq: 102 INVITE > 10. Now Proxy a send an ACK with CSeq: 102 ACK and proxy b relay ACK to > asterisk with CSeq: 102 ACK > > Now asterisk is retransmitting 200 ok with CSeq: 103 INVITE and proxy a is > sending ACK with Cseq: 102 ACK > > Same happing in case of 487 Request Terminated > > Here is my config > > modparam("dialog", "default_timeout", 10800) # 3h > modparam("dialog", "dlg_match_mode", 1) > modparam("dialog", "db_mode", 0) > modparam("dialog", "send_bye", 1) > modparam("dialog", "track_cseq_updates", 1) > modparam("uac","auth_username_avp","$avp(auser)") > modparam("uac","auth_password_avp","$avp(apass)") > modparam("uac","auth_realm_avp","$avp(arealm)") > > modparam("tm", "failure_reply_mode", 3) > # default retransmission timeout: 3 sec > modparam("tm", "fr_timer", 2000) > modparam("tm", "retr_timer1", 250) > modparam("tm", "retr_timer2", 500) > # default invite retransmission timeout after 1xx: 60 sec > modparam("tm", "fr_inv_timer", 60000) > modparam("tm", "reparse_on_dns_failover", 0) > > > > if (is_method("INVITE") && !has_totag()) { > dlg_setflag(FLD_RTPPROXY); > dlg_manage(); > } > route(RELAY); > > > > > route[RELAY] { > > # At this point all checks are passed > t_on_branch("MANAGE_BRANCH"); > t_on_reply("MANAGE_REPLY"); > t_on_failure("MANAGE_FAILURE"); > if(is_method("INVITE") && isflagset(FLT_FROMDID)) { > #$fd = "sip.comms.kuflink.com"; > t_on_failure("RELAY_AUTH"); > } > > if (!t_relay()) { > send_reply("500", "Cannot relay to $du/$ru"); > } > exit; > } > > failure_route[RELAY_AUTH] { > t_on_branch("MANAGE_BRANCH"); > t_on_reply("MANAGE_REPLY"); > if (t_is_canceled()) { > exit; > } > if(t_check_status("401|407")) { > #$fd = "sip.comms.kuflink.com"; > $avp(auser) = "DID_UA_USERNAME"; > $avp(apass) = "DID_UA_PASSWORD"; > if (uac_auth()) { > t_relay(); > } > exit; > } > } > > > route[WITHINDLG] { > if (!has_totag()) { > return; > } > > if (is_method("BYE")) { > rtpengine_delete(); > } > > # sequential request withing a dialog should > # take the path determined by record-routing > if (loose_route()) { > route(DLGURI); > if (is_method("ACK")) { > # ACK is forwarded statelessly > route(NATMANAGE); > } else if (is_method("NOTIFY")) { > # Add Record-Route for in-dialog NOTIFY as per RFC 6665. > record_route(); > } > route(RELAY); > exit; > } > > if (is_method("SUBSCRIBE") && uri == myself) { > # in-dialog subscribe requests > route(PRESENCE); > exit; > } > if (is_method("ACK") ) { > if (t_check_trans()) { > # no loose-route, but stateful ACK; > # must be an ACK after a 487 > # or e.g. 404 from upstream server > route(RELAY); > exit; > } else { > # ACK without matching transaction ... ignore and discard > exit; > } > } > send_reply("404","Not here"); > exit; > } > > > kamailio -v > version: kamailio 5.3.7 (x86_64/linux) > flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, > DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, > F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, > USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, > HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED > ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, > BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB > poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. > id: unknown > compiled with gcc 6.3.0 > > > uname -a > Linux example.com 4.15.0-124-generic #127-Ubuntu SMP Fri Nov 6 10:54:43 > UTC 2020 x86_64 GNU/Linux > > > > SIP logs > 2020/12/17 10:08:18.483907 proxy-a.com:5060 -> 10.0.14.118:5060 > INVITE sip:[email protected] SIP/2.0 > Record-Route: <sip:proxy-a.com;lr> > Via: SIP/2.0/UDP proxy-a.com:5060 > ;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Max-Forwards: 70 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]> > Contact: <sip:[email protected]:5060> > Call-ID: [email protected] > User-Agent: ProxyA > CSeq: 102 INVITE > User-Agent: proxy > Date: Thu, 17 Dec 2020 10:08:18 GMT > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Remote-Party-ID: "7654321" <sip:[email protected] > >;party=calling;privacy=off;screen=no > Content-Type: application/sdp > Content-Length: 885 > > > > 2020/12/17 10:08:18.485063 10.0.14.118:5060 -> proxy-a.com:5060 > SIP/2.0 100 trying -- your call is important to us > Via: SIP/2.0/UDP proxy-a.com:5060 > ;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1;rport=5060 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]> > Call-ID: [email protected] > CSeq: 102 INVITE > Server: kamailio (5.3.7 (x86_64/linux)) > Content-Length: 0 > > > 2020/12/17 10:08:18.485576 10.0.14.118:5060 -> 10.0.14.118:6000 > INVITE sip:[email protected] SIP/2.0 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.619fd995c3fc8764ce5cd9c7be7efeef.0 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Max-Forwards: 70 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]> > Contact: <sip:[email protected]:5060> > Call-ID: [email protected] > User-Agent: ProxyA > CSeq: 102 INVITE > User-Agent: proxy > Date: Thu, 17 Dec 2020 10:08:18 GMT > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Remote-Party-ID: "7654321" <sip:[email protected] > >;party=calling;privacy=off;screen=no > Content-Type: application/sdp > Content-Length: 885 > > > > 2020/12/17 10:08:18.622867 10.0.14.118:6000 -> 10.0.14.118:5060 > SIP/2.0 401 Unauthorized > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.619fd995c3fc8764ce5cd9c7be7efeef.0;received=10.0.14.118;rport=5060 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as4107645c > Call-ID: [email protected] > CSeq: 102 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > WWW-Authenticate: Digest algorithm=MD5, realm="sip1.comms.kuflink.com", > nonce="11139d33" > Content-Length: 0 > > > > 2020/12/17 10:08:18.624034 10.0.14.118:5060 -> 10.0.14.118:6000 > ACK sip:[email protected] SIP/2.0 > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.619fd995c3fc8764ce5cd9c7be7efeef.0 > Max-Forwards: 70 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as4107645c > Call-ID: [email protected] > CSeq: 102 ACK > Content-Length: 0 > > > > 2020/12/17 10:08:18.625557 10.0.14.118:5060 -> 10.0.14.118:6000 > INVITE sip:[email protected] SIP/2.0 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.619fd995c3fc8764ce5cd9c7be7efeef.1.cs102 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Max-Forwards: 70 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]> > Contact: <sip:[email protected]:5060> > Call-ID: [email protected] > User-Agent: ProxyA > CSeq: 103 INVITE > User-Agent: proxy > Date: Thu, 17 Dec 2020 10:08:18 GMT > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Remote-Party-ID: "7654321" <sip:[email protected] > >;party=calling;privacy=off;screen=no > Content-Type: application/sdp > Content-Length: 885 > Authorization: Digest username="xxxxx", realm="xxxx", nonce="11139d33", > uri="sip:[email protected]", response="qwewqeqwe", algorithm=MD5 > > > > 2020/12/17 10:08:18.779483 10.0.14.118:6000 -> 10.0.14.118:5060 > SIP/2.0 100 Trying > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.619fd995c3fc8764ce5cd9c7be7efeef.1.cs102;received=10.0.14.118;rport=5060 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]> > Call-ID: [email protected] > CSeq: 103 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Session-Expires: 1800;refresher=uas > Contact: <sip:[email protected]:6000> > Content-Length: 0 > > > > > 2020/12/17 10:08:20.937756 10.0.14.118:6000 -> 10.0.14.118:5060 > SIP/2.0 180 Ringing > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.619fd995c3fc8764ce5cd9c7be7efeef.1.cs102;received=10.0.14.118;rport=5060 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Call-ID: [email protected] > CSeq: 103 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Session-Expires: 1800;refresher=uas > Contact: <sip:[email protected]:6000> > Content-Length: 0 > > > > 2020/12/17 10:08:20.938593 10.0.14.118:5060 -> proxy-a.com:5060 > SIP/2.0 180 Ringing > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Call-ID: [email protected] > CSeq: 102 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Session-Expires: 1800;refresher=uas > Contact: <sip:[email protected]:6000;alias=10.0.14.118~6000~1> > Content-Length: 0 > > > > 2020/12/17 10:08:22.075814 10.0.14.118:6000 -> 10.0.14.118:5060 > SIP/2.0 200 OK > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.619fd995c3fc8764ce5cd9c7be7efeef.1.cs102;received=10.0.14.118;rport=5060 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Call-ID: [email protected] > CSeq: 103 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Session-Expires: 1800;refresher=uas > Contact: <sip:[email protected]:6000> > Content-Type: application/sdp > Require: timer > Content-Length: 296 > > > 2020/12/17 10:08:22.077049 10.0.14.118:5060 -> proxy-a.com:5060 > SIP/2.0 200 OK > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Call-ID: [email protected] > CSeq: 102 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Session-Expires: 1800;refresher=uas > Contact: <sip:[email protected]:6000;alias=10.0.14.118~6000~1> > Content-Type: application/sdp > Require: timer > Content-Length: 316 > > > > 2020/12/17 10:08:22.103365 proxy-a.com:5060 -> 10.0.14.118:5060 > ACK > sip:[email protected]:6000;alias=10.0.14.118~6000~1;alias=109.72.216.251~5060~1 > SIP/2.0 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;branch=z9hG4bKbe6d.0fc1940efc770391762d7d67094c24f8.0 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK2a5fae72;rport=5060 > Route: <sip:proxy-b.com;lr;did=d18.7a9> > Max-Forwards: 70 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Contact: <sip:[email protected]:5060> > Call-ID: [email protected] > CSeq: 102 ACK > User-Agent: proxy > Content-Length: 0 > > > > 2020/12/17 10:08:22.103877 10.0.14.118:5060 -> 10.0.14.118:6000 > ACK sip:[email protected]:6000;alias=109.72.216.251~5060~1 SIP/2.0 > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.79f351d031912aae585207d2f26d5650.0 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.0fc1940efc770391762d7d67094c24f8.0 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK2a5fae72;rport=5060 > Max-Forwards: 70 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Contact: <sip:[email protected]:5060> > Call-ID: [email protected] > CSeq: 102 ACK > User-Agent: proxy > Content-Length: 0 > P-K-CSeq-Refresh: 103 > > > 2020/12/17 10:08:22.575533 10.0.14.118:6000 -> 10.0.14.118:5060 > SIP/2.0 200 OK > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.619fd995c3fc8764ce5cd9c7be7efeef.1.cs102;received=10.0.14.118;rport=5060 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Call-ID: [email protected] > CSeq: 103 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Session-Expires: 1800;refresher=uas > Contact: <sip:[email protected]:6000> > Content-Type: application/sdp > Require: timer > Content-Length: 296 > > > > 2020/12/17 10:08:22.576777 10.0.14.118:5060 -> proxy-a.com:5060 > SIP/2.0 200 OK > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Call-ID: [email protected] > CSeq: 102 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Session-Expires: 1800;refresher=uas > Contact: <sip:[email protected]:6000;alias=10.0.14.118~6000~1> > Content-Type: application/sdp > Require: timer > Content-Length: 316 > > > > 2020/12/17 10:08:22.581649 proxy-a.com:5060 -> 10.0.14.118:5060 > ACK > sip:[email protected]:6000;alias=10.0.14.118~6000~1;alias=109.72.216.251~5060~1 > SIP/2.0 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;branch=z9hG4bKbe6d.b9c7eeccd4cd7b44f05b173308dbaf0a.0 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK219933f6;rport=5060 > Route: <sip:proxy-b.com;lr;did=d18.7a9> > Max-Forwards: 70 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Contact: <sip:[email protected]:5060> > Call-ID: [email protected] > CSeq: 102 ACK > User-Agent: proxy > Content-Length: 0 > > > > 2020/12/17 10:08:22.582313 10.0.14.118:5060 -> 10.0.14.118:6000 > ACK sip:[email protected]:6000;alias=109.72.216.251~5060~1 SIP/2.0 > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.33626b5695ad4648ba393bc62bed6a8c.0 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.b9c7eeccd4cd7b44f05b173308dbaf0a.0 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK219933f6;rport=5060 > Max-Forwards: 70 > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Contact: <sip:[email protected]:5060> > Call-ID: [email protected] > CSeq: 102 ACK > User-Agent: proxy > Content-Length: 0 > P-K-CSeq-Refresh: 103 > > > 2020/12/17 10:08:23.575828 10.0.14.118:6000 -> 10.0.14.118:5060 > SIP/2.0 200 OK > Via: SIP/2.0/UDP proxy-b.com:5060 > ;branch=z9hG4bKbe6d.619fd995c3fc8764ce5cd9c7be7efeef.1.cs102;received=10.0.14.118;rport=5060 > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Call-ID: [email protected] > CSeq: 103 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Session-Expires: 1800;refresher=uas > Contact: <sip:[email protected]:6000> > Content-Type: application/sdp > Require: timer > Content-Length: 296 > > > 2020/12/17 10:08:23.577863 10.0.14.118:5060 -> proxy-a.com:5060 > SIP/2.0 200 OK > Via: SIP/2.0/UDP proxy-a.com:5060 > ;rport=5060;branch=z9hG4bKbe6d.10c4c5f001c66b8976214d4aef9f635c.1 > Via: SIP/2.0/UDP did.com:5060;received=did.com > ;branch=z9hG4bK45f94ed9;rport=5060 > Record-Route: <sip:proxy-b.com;lr;did=d18.7a9> > Record-Route: <sip:proxy-a.com;lr> > From: "7654321" <sip:[email protected]>;tag=as55c522e1 > To: <sip:[email protected]>;tag=as147bfa3e > Call-ID: [email protected] > CSeq: 102 INVITE > Server: proxy > Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, > PUBLISH, MESSAGE > Supported: replaces, timer > Session-Expires: 1800;refresher=uas > Contact: <sip:[email protected]:6000;alias=10.0.14.118~6000~1> > Content-Type: application/sdp > Require: timer > Content-Length: 316 > > > > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >
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