[SR-Users] Kamailio drop calls with Teams
sip user
sipuser404 at gmail.com
Tue Sep 1 11:15:03 CEST 2020
Hi Daniel, thanks for answered to me...
With debug=3 I see that:
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:610]:
parse_msg(): SIP Request:
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:612]:
parse_msg(): method: <ACK>
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:614]:
parse_msg(): uri: <sip:+34590 at FQND:5061;user=phone;transport=tls>
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:616]:
parse_msg(): version: <SIP/2.0>
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/parse_addr_spec.c:185]:
parse_to_param(): add param: tag=92e2fd8688a9d17b927d9be2f84faa55-8079
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/parse_addr_spec.c:864]:
parse_addr_spec(): end of header reached, state=29
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:171]:
get_hdr_field(): <TO> [94]; uri=[sip:+34590 at FQND:5061;user=phone]
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:174]:
get_hdr_field(): to body [<sip:+34590 at FQND:5061;user=phone>], to tag
[92e2fd8688a9d17b927d9be2f84faa55-8079]
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:152]:
get_hdr_field(): cseq <CSEQ>: <1> <ACK>
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/parse_via.c:1303]:
parse_via_param(): Found param type 232, <branch> = <z9hG4bKf4784e39>;
state=16
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/parse_via.c:2639]:
parse_via(): end of header reached, state=5
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:498]:
parse_headers(): Via found, flags=2
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:500]:
parse_headers(): this is the first via
kamailio[1096]: 9(1109) DEBUG: <core> [core/receive.c:240]: receive_msg():
--- received sip message - request - call-id:
[d3649f52dc0057768ec6c18733de8206] - cseq: [1 ACK]
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:185]:
get_hdr_field(): content_length=0
kamailio[1096]: 9(1109) DEBUG: <core> [core/parser/msg_parser.c:89]:
get_hdr_field(): found end of header
kamailio[1096]: 9(1109) DEBUG: {1 1 ACK d3649f52dc0057768ec6c18733de8206}
<core> [core/receive.c:295]: receive_msg(): preparing to run routing
scripts...
kamailio[1096]: 9(1109) DEBUG: {1 1 ACK d3649f52dc0057768ec6c18733de8206}
sl [sl_funcs.c:397]: sl_filter_ACK(): too late to be a local ACK!
So, I understand that ACK comes from Teams, right? So kamailio routing
problem?
Thanks
El mar., 25 ago. 2020 a las 15:32, Daniel-Constantin Mierla (<
miconda at gmail.com>) escribió:
> Hello,
>
> run with debug=3 in kamailio.cfg and see if the ACK comes to Kamailio, if
> yes, then some routing issue in kamailio.cfg. If does not come, you will
> have to check the headers to see if MS Teams expects something else there,
> typically is about Record-Route domains...
>
> Cheers,
> Daniel
> On 20.08.20 12:25, sip user wrote:
>
> Hi, I'm connecting Teams with kamailio server. From Kamailio to teams I
> have no problems, but from teams to Kamailio yes. Drop the call..
>
> With ngrep I see that:
>
> INVITE sip:1005 at CLIENT_IP:55766;transport=UDP;rinstance=d47edf336726e940
> SIP/2.0.
> Record-Route: <sip:FQND_IP;r2=on;lr>.
> Record-Route: <sip:FQND_IP:5061;transport=tls;r2=on;lr>.
> FROM: "Javier Gonz..lez Mu..oz"
> <sip:+324 at sip.pstnhub.microsoft.com:5061;user=phone>
> ;tag=c17bb1eb7f8649d4a89d8d4a876ac32b.
> TO: <sip:+34560 at FQND:5061;user=phone>.
> CSEQ: 1 INVITE.
> CALL-ID: c1364913e582553a9a9c2544c3583b0a.
> MAX-FORWARDS: 69.
> Via: SIP/2.0/UDP
> 92.222.217.64;branch=z9hG4bK7bb5.0fbae76a37829205e04279f220a26af2.0;i=a1.
> VIA: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bKd216a55.
> RECORD-ROUTE:
> <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>.
> CONTACT:
> <sip:api-du-a-euno.pstnhub.microsoft.com:443;x-i=b0b53fc5-76ef-4619-9a68-13e0a4eea92d;x-c=c1364913e582553a9a9c2544c3583b0a/d/8/6c25eb3789a14bf188ce6b05b5e27891>
> .
> CONTENT-LENGTH: 1091.
> MIN-SE: 300.
> SUPPORTED: timer.
> USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2020.7.31.1 i.EUNO.0.
> CONTENT-TYPE: application/sdp.
> ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY.
> P-ASSERTED-IDENTITY: <tel:+324> <+324>,<sip:EMAIL>.
> PRIVACY: id.
> SESSION-EXPIRES: 3600.
> .
> v=0.
> o=- 165103 0 IN IP4 127.0.0.1.
> s=session.
> c=IN IP4 52.113.44.8.
> b=CT:10000000.
> t=0 0.
> m=audio 50452 RTP/SAVP 104 9 103 111 18 0 8 97 101 13 118.
> c=IN IP4 52.113.44.8.
> a=rtcp:50453.
> a=ice-ufrag:FZTb.
> a=ice-pwd:yD3P7nr+xNq0VYdv7xpB1F+Y.
> a=rtcp-mux.
> a=candidate:1 1 UDP 2130706431 52.113.44.8 50452 typ srflx raddr
> 10.0.33.240 rport 50
>
> U CLIENT_IP:55766 -> FQND_IP:5060 #2
> SIP/2.0 180 Ringing.
> Via: SIP/2.0/UDP
> FQND_IP;branch=z9hG4bK7bb5.0fbae76a37829205e04279f220a26af2.0;i=a1.
> Via: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bKd216a55.
> Record-Route: <sip:FQND_IP;lr;r2=on>.
> Record-Route: <sip:FQND_IP:5061;transport=tls;r2=on;lr>.
> Record-Route:
> <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>.
> Contact:
> <sip:1005 at CLIENT_IP:55766;transport=UDP;rinstance=d47edf336726e940>.
> To: <sip:+34560 at FQND:5061;user=phone>;tag=de4e6b45.
> From: "Javier Gonz..lez Mu..oz"
> <sip:+324 at sip.pstnhub.microsoft.com:5061;user=phone>
> ;tag=c17bb1eb7f8649d4a89d8d4a876ac32b.
> Call-ID: c1364913e582553a9a9c2544c3583b0a.
> CSeq: 1 INVITE.
> User-Agent: 3CXPhone 6.0.26523.0.
> Content-Length: 0.
>
> U CLIENT_IP:55766 -> FQND_IP:5060 #3
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP
> FQND_IP;branch=z9hG4bK7bb5.0fbae76a37829205e04279f220a26af2.0;i=a1.
> Via: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bKd216a55.
> Record-Route: <sip:FQND_IP;lr;r2=on>.
> Record-Route: <sip:FQND_IP:5061;transport=tls;r2=on;lr>.
> Record-Route:
> <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>.
> Contact:
> <sip:1005 at CLIENT_IP:55766;transport=UDP;rinstance=d47edf336726e940>.
> To: <sip:+34560 at FQND:5061;user=phone>;tag=de4e6b45.
> From: "Javier Gonz..lez Mu..oz"
> <sip:+324 at sip.pstnhub.microsoft.com:5061;user=phone>
> ;tag=c17bb1eb7f8649d4a89d8d4a876ac32b.
> Call-ID: c1364913e582553a9a9c2544c3583b0a.
> CSeq: 1 INVITE.
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY,
> REFER, INFO, MESSAGE.
> Content-Type: application/sdp.
> Supported: replaces.
> User-Agent: 3CXPhone 6.0.26523.0.
> Content-Length: 1067.
> .
> v=0.
> o=3cxVCE 324945090 117647850 IN IP4 .
> s=3cxVCE Audio Call.
> t=0 0.
> m=audio 0 RTP/SAVP 104 9 103 111 18 0 8 97 101 13 118.
> c=IN IP4 52.113.44.8.
> a=rtpmap:104 SILK/16000.
> a=rtpmap:9 G722/8000.
> a=rtpmap:103 SILK/8000.
> a=rtpmap:111 SIREN/16000.
> a=fmtp:111 bitrate=16000.
> a=rtpmap:18 G729/8000.
> a=fmtp:18 annexb=no.
> a=rtpmap:0 PCMU/8000.
> a=rtpmap:8 PCMA/8000.
> a=rtpmap:97 RED/8000.
> a=rtpmap:101 telephone-event/8000.
> a=fmtp:101 0-16.
> a=rtpmap:13 CN/8000.
> a=rtpmap:118 CN/16000.
> a=rtcp:50453.
> a=ice-ufrag:FZTb.
> a=ice-pwd:yD3P7nr+xNq0VYdv7xpB1F+Y.
> a=rtcp-mux.
> a=candidate:1 1 UDP 213
>
> I never received ACK..
>
> In my configuration:
>
> Kamailio.cfg:
>
> #!KAMAILIO
> #!define WITH_TLS
>
> event_route[tm:local-request] {
>
> if(is_method("OPTIONS") && $ru =~ "pstnhub.microsoft.com") {
> append_hf("Contact: <sip:FQND:5061;transport=tls>\r\n");
> }
> xlog("L_INFO", "Sent out tm request: $mb\n");
> }
>
> request_route{
>
> remove_hf("Route");
> if (is_method("INVITE|SUBSCRIBE")) {
> xlog("L_INFO","$fU is trying to call to $rU con valores
> $tu\n");
> $rU="1005";
> }
> }
>
> What I'm doing wrong?
>
> I don't understand why not received ACK..
>
> Could anyone help me?
>
> Thanks
>
> _______________________________________________
> Kamailio (SER) - Users Mailing Listsr-users at lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
> --
> Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda
> Funding: https://www.paypal.me/dcmierla
>
>
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