[SR-Users] kamailio as SBC for Teams

Fri Apr 10 12:30:57 CEST 2020

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
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