[SR-Users] kamailio as SBC for Teams
Sergiu Pojoga
pojogas at gmail.com
Fri Apr 10 18:00:56 CEST 2020
You're likely referring to this:
*Priority 1. Top-level Record-Route. If the top-level Record-Route contains
the FQDN name or IP, the FQDN name or IP is used to make the outbound
in-dialog connection.*
Like with many Microsoft products, nobody knows precisely what they expect.
To make matters worse - they don't reply back suggesting what's wrong, no
tools on their side to troubleshoot.
Regardless, why do you have 3 RRs of Kamailio? Fix the RRs, try again, or
don't, it's up to you.
Good luck.
--Sergiu
On Fri, Apr 10, 2020 at 11:42 AM Aidar Kamalov <aidar.kamalov at gmail.com>
wrote:
> I thought they look only at first RR field?
>
> пт, 10 апр. 2020 г. в 17:03, Sergiu Pojoga <pojogas at gmail.com>:
>
>> You have too many RR of Kamailio, x1 FQDN, x3 IP. Why?
>>
>> IMO, you should have only 2 of Kamailio, if you're doing transport
>> conversion. Both FQDNs + ";r2=on". MS clearly says FQDN everywhere, no IP,
>> especially RR
>>
>> On Fri, Apr 10, 2020 at 7:06 AM Aidar Kamalov <aidar.kamalov at gmail.com>
>> wrote:
>>
>>> Thanks for the answer, I have disabled forse_rport() for Teams side,
>>> responses now going to address in Via header, but it is not resolved my
>>> issue, no ACK from Teams :(
>>>
>>> чт, 9 апр. 2020 г. в 18:22, Sergiu Pojoga <pojogas at gmail.com>:
>>>
>>>> Hi Aydar,
>>>>
>>>> Request from MS proxy has VIA: SIP/2.0/TLS 52.114.7.24:5061, that's
>>>> where your reply should go. You're sending to 52.114.7.24:1024 instead?
>>>>
>>>> Also, looks like you're missing "r2=on" on the other RR, only one has
>>>> it.
>>>>
>>>> Cheers,
>>>>
>>>> On Thu, Apr 9, 2020 at 11:09 AM Aidar Kamalov <aidar.kamalov at gmail.com>
>>>> wrote:
>>>>
>>>>> Hello,
>>>>>
>>>>> I read https://skalatan.de/en/blog/kamailio-sbc-teams and trying to
>>>>> use kamailio for teams.
>>>>> But I faced that MS not responding ACK to my 200OK. Somethin is wrong,
>>>>> but I don't know what. I call from teams to kamailio.
>>>>> Can you help me please
>>>>>
>>>>> This is initial INVITE from Teams:
>>>>> 2020/04/09 22:55:17.346092 52.114.7.24:1024 -> KAMAILIO_IP:5061
>>>>> INVITE sip:+xxxxxxxxx at MY_KAMAILIO_FQDN:5061;user=phone;transport=tls
>>>>> SIP/2.0
>>>>> FROM: Aidar Kamalov<sip:+xxxxxxxxx at sip.pstnhub.microsoft.com:5061
>>>>> ;user=phone>;tag=de28a5b5333b451a97312097f91f5564
>>>>> TO: <sip:xxxxxxxx at MY_KAMAILIO_FQDN:5061;user=phone>
>>>>> CSEQ: 1 INVITE
>>>>> CALL-ID: 3d5ad3cdd01457be94d127fa20478cf1
>>>>> MAX-FORWARDS: 70
>>>>> VIA: SIP/2.0/TLS 52.114.7.24:5061;branch=z9hG4bKdb903e2c
>>>>> RECORD-ROUTE: <sip:sip-du-a-as.pstnhub.microsoft.com:5061
>>>>> ;transport=tls;lr>
>>>>> CONTACT: <sip:api-du-a-euno.pstnhub.microsoft.com:443
>>>>> ;x-i=903eeaac-b19e-43a0-8e75-bb222049922a;x-c=3d5ad3cdd01457be94d127fa20478cf1/d/8/d3d2c2e3f3c14f88bb2fe843b4bc70e4>
>>>>> CONTENT-LENGTH: 2426
>>>>> USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2020.4.4.3 i.ASEA.5
>>>>> CONTENT-TYPE: application/sdp
>>>>> ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
>>>>>
>>>>> v=0
>>>>> o=- 0 0 IN IP4 52.114.252.146
>>>>> s=session
>>>>> c=IN IP4 52.114.252.146
>>>>> b=CT:50000
>>>>> t=0 0
>>>>> m=audio 52939 RTP/SAVP 104 9 111 18 0 8 103 97 13 118 119 101
>>>>> a=rtcp:52925
>>>>> a=ice-ufrag:rKBm
>>>>> a=ice-pwd:BkjUnkfIvYV5pjteSteevL1O
>>>>> a=rtcp-mux
>>>>> a=candidate:4 1 UDP 184547839 52.114.252.146 52939 typ relay raddr
>>>>> 31.13.144.55 rport 57780
>>>>> a=candidate:4 2 UDP 184547326 52.114.252.146 52925 typ relay raddr
>>>>> 31.13.144.55 rport 57781
>>>>> a=candidate:1 1 tcp-act 2121006590 100.78.247.179 1024 typ host
>>>>> a=candidate:1 2 tcp-act 2121006590 100.78.247.179 1024 typ host
>>>>> a=candidate:2 1 UDP 2130705919 100.78.247.179 39182 typ host
>>>>> a=candidate:2 2 UDP 2130705406 100.78.247.179 39183 typ host
>>>>> a=candidate:3 1 UDP 1694497791 31.13.144.55 57780 typ srflx raddr
>>>>> 100.78.247.179 rport 39182
>>>>> a=candidate:3 2 UDP 1694497278 31.13.144.55 57781 typ srflx raddr
>>>>> 100.78.247.179 rport 39183
>>>>> a=candidate:5 1 tcp-act 1684796926 31.13.144.55 9761 typ srflx raddr
>>>>> 100.78.247.179 rport 41775
>>>>> a=candidate:5 2 tcp-act 1684796926 31.13.144.55 9761 typ srflx raddr
>>>>> 100.78.247.179 rport 41775
>>>>> a=candidate:6 1 tcp-pass 174453758 52.114.252.130 59925 typ relay
>>>>> raddr 31.13.144.55 rport 9761
>>>>> a=candidate:6 2 tcp-pass 174453758 52.114.252.130 59925 typ relay
>>>>> raddr 31.13.144.55 rport 9761
>>>>> a=candidate:7 1 tcp-act 174846462 52.114.252.130 59925 typ relay raddr
>>>>> 31.13.144.55 rport 9761
>>>>> a=candidate:7 2 tcp-act 174846462 52.114.252.130 59925 typ relay raddr
>>>>> 31.13.144.55 rport 9761
>>>>> a=x-candidate-info:4 network-type=WWAN
>>>>> a=x-candidate-info:1 network-type=WWAN
>>>>> a=x-candidate-info:2 network-type=WWAN
>>>>> a=x-candidate-info:3 network-type=WWAN
>>>>> a=x-candidate-info:5 network-type=WWAN
>>>>> a=x-candidate-info:6 network-type=WWAN
>>>>> a=x-candidate-info:7 network-type=WWAN
>>>>> a=crypto:1 AES_CM_128_HMAC_SHA1_32
>>>>> inline:DY3r3DWRojJm94CJQ83OAavmlRCwPf5ciRxHCT40|2^31
>>>>> a=crypto:2 AES_CM_128_HMAC_SHA1_80
>>>>> inline:DY3r3DWRojJm94CJQ83OAavmlRCwPf5ciRxHCT40|2^31
>>>>> a=crypto:3 AES_CM_128_HMAC_SHA1_80
>>>>> inline:DY3r3DWRojJm94CJQ83OAavmlRCwPf5ciRxHCT40|2^31|1:1
>>>>> a=rtpmap:104 SILK/16000
>>>>> a=fmtp:104 useinbandfec=1; usedtx=0
>>>>> a=rtpmap:9 G722/8000
>>>>> a=rtpmap:111 SIREN/16000
>>>>> a=fmtp:111 bitrate=16000
>>>>> a=rtpmap:18 G729/8000
>>>>> a=rtpmap:0 PCMU/8000
>>>>> a=rtpmap:8 PCMA/8000
>>>>> a=rtpmap:103 SILK/8000
>>>>> a=fmtp:103 useinbandfec=1; usedtx=0
>>>>> a=rtpmap:97 RED/8000
>>>>> a=rtpmap:13 CN/8000
>>>>> a=rtpmap:118 CN/16000
>>>>> a=rtpmap:119 CN/24000
>>>>> a=rtpmap:101 telephone-event/8000
>>>>> a=fmtp:101 0-16
>>>>> a=ptime:20
>>>>> a=maxptime:200
>>>>>
>>>>>
>>>>>
>>>>> and my 200OK to MS is:
>>>>>
>>>>> 2020/04/09 22:55:19.976427 KAMAILIO_IP:5061 -> 52.114.7.24:1024
>>>>> SIP/2.0 200 OK
>>>>> Record-Route:
>>>>> <sip:KAMAILIO_FQDN_DOMAIN:5061;transport=tls;ftag=de28a5b5333b451a97312097f91f5564;lr=on>
>>>>> Record-Route:
>>>>> <sip:KAMAILIO_IP:5060;ftag=de28a5b5333b451a97312097f91f5564;lr=on>
>>>>> Via: SIP/2.0/TLS 52.114.7.24:5061;rport=1024;branch=z9hG4bKdb903e2c
>>>>> Record-Route:
>>>>> <sip:ENDPOINT_BEHIND_KAMAILIO_IP;line=sr-QyfKA15Kw1rKw1hKEoPljM0oE1VLX10RQ1VLX10gkY37WJufE1BBjJhVE6E6r14VEJ5Nj6ElE1UNjyrNEJrVjnr.AyudmMV1rg52rJrlAyNBkMVNmSE*>
>>>>> Record-Route:
>>>>> <sip:ENDPOINT_BEHIND_KAMAILIO_IP;r2=on;lr=on;ftag=de28a5b5333b451a97312097f91f5564;did=cba.af1;nat=yes>
>>>>> Record-Route:
>>>>> <sip:KAMAILIO_IP;r2=on;lr=on;ftag=de28a5b5333b451a97312097f91f5564;did=cba.42a1;nat=yes>
>>>>> Record-Route:
>>>>> <sip:KAMAILIO_IP:5061;transport=tls;r2=on;lr=on;ftag=de28a5b5333b451a97312097f91f5564;did=cba.42a1;nat=yes>
>>>>> Record-Route: <sip:sip-du-a-as.pstnhub.microsoft.com:5061
>>>>> ;transport=tls;lr>
>>>>> To: <sip:+xxxxxxxxxx at KAMAILIO_FQDN_DOMAIN
>>>>> :5061;user=phone>;tag=3795432917-393759697
>>>>> From: <sip:+xxxxxxxxxx at sip.pstnhub.microsoft.com:5061
>>>>> ;user=phone>;tag=de28a5b5333b451a97312097f91f5564
>>>>> Call-ID: 3d5ad3cdd01457be94d127fa20478cf1
>>>>> CSeq: 1 INVITE
>>>>> Allow:
>>>>> PUBLISH,MESSAGE,UPDATE,PRACK,SUBSCRIBE,REFER,INFO,NOTIFY,REGISTER,OPTIONS,BYE,INVITE,ACK,CANCEL
>>>>> Content-Type: application/sdp
>>>>> Accept: application/sdp
>>>>> Content-Length: 282
>>>>> User-Agent: MY_DOMAIN
>>>>> Contact:
>>>>> <sip:KAMAILIO_IP;line=sr-DHZToOtmMdn7MODy9AnmD10TGLpUrL4noJCE4A03DdQE9LUaMXr*>
>>>>>
>>>>> v=0
>>>>> o=ETPI-MSX1 0 0 IN IP4 KAMAILIO_IP
>>>>> s=sip call
>>>>> c=IN IP4 KAMAILIO_IP
>>>>> t=0 0
>>>>> m=audio 12176 RTP/SAVP 8
>>>>> b=AS:64
>>>>> a=maxptime:20
>>>>> a=rtpmap:8 PCMA/8000
>>>>> a=sendrecv
>>>>> a=rtcp:12177
>>>>> a=crypto:1 AES_CM_128_HMAC_SHA1_32
>>>>> inline:03ZmcR+CxxB7k7C8QvWBgseYq7cH7py7VxqfLM8j
>>>>> a=ptime:20
>>>>>
>>>>>
>>>>> --
>>>>> Aydar A. Kamalov
>>>>> _______________________________________________
>>>>> Kamailio (SER) - Users Mailing List
>>>>> sr-users at lists.kamailio.org
>>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>>
>>>> _______________________________________________
>>>> Kamailio (SER) - Users Mailing List
>>>> sr-users at lists.kamailio.org
>>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>>
>>>
>>>
>>> --
>>> Aydar A. Kamalov
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
>> _______________________________________________
>> Kamailio (SER) - Users Mailing List
>> sr-users at lists.kamailio.org
>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>
>
>
> --
> Aydar A. Kamalov
> _______________________________________________
> Kamailio (SER) - Users Mailing List
> sr-users at lists.kamailio.org
> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
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