I have not read the MS Teams article, but from a SIP perspective your ACK is
malformed. The Request URI in the ACK - and any other sequential requests -
must be the Contact URI from the 200 OK response. Your ACK Request URI has the
parameters from the Contact header, but the domain/host is different. I'm
guessing your script may be modifying that value as it passes the ACK through?
Also, your ACK does not contain the complete Route set from the 200 OK, it only
contains the first entry.
Ben Newlin
On 4/29/20, 10:00 AM, "Users on behalf of Santi Anton"
<users-boun...@lists.opensips.org on behalf of santi.an...@quarea.com> wrote:
Hello Ben,
I agree. These are the INVITE and 200 OK. I only could see that to and from
tag an Call-ID are the same. I think that in the article there is nothing
about modifying ACK headers to make it work.
INVITE sip:5...@sip.pstnhub.microsoft.com SIP/2.0
Record-Route:
<sip:sbc.xxxxxxxxxx.com:5067;transport=tls;lr;did=12a.a46808d1;r2=on>
Record-Route: <sip:195.xx.xx.xx:5060;lr;did=12a.a46808d1;r2=on>
Via: SIP/2.0/TLS 195.xx.xx.xx:5067;branch=z9hG4bK2f83.ee24a46.0
Via: SIP/2.0/UDP
80.xx.xx.xx.xx:5060;received=80.xx.xx.xx.xx;branch=z9hG4bK4df6ca5c;rport=5060
Max-Forwards: 69
From: <sip:935441...@80.xx.xx.xx.xx>;tag=as7659f57d
To: <sip:5...@sbc.xxxxxxxxxx.com:5068>
Contact: <sip:935441...@80.xx.xx.xx.xx:5060>
Call-ID: 433371746cb44b7d76fdc42013bf9...@80.xx.xx.xx.xx:5060
CSeq: 102 INVITE
User-Agent: FPBX-12.0.76.6(11.20.0)
Date: Mon, 27 Apr 2020 16:25:24 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
PUBLISH, MESSAGE
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 1470
SIP/2.0 200 OK
FROM: <sip:935441...@80.xx.xx.xx.xx>;tag=as7659f57d
TO: <sip:5...@sbc.xxxxxxxxxx.com:5068>;tag=50fe42a7fdb64fe583c1089a0b47f44a
CSEQ: 102 INVITE
CALL-ID: 433371746cb44b7d76fdc42013bf9...@80.xx.xx.xx.xx:5060
VIA: SIP/2.0/TLS 195.xx.xx.xx:5067;branch=z9hG4bK2f83.ee24a46.0,SIP/2.0/UDP
80.xx.xx.xx.xx:5060;received=80.xx.xx.xx.xx;branch=z9hG4bK4df6ca5c;rport=5060
RECORD-ROUTE:
<sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:sbc.xxxxxxxxxx.com:5067;transport=tls;lr;did=12a.a46808d1;r2=on>,<sip:195.xx.xx.xx:5060;lr;did=12a.a46808d1;r2=on>
CONTACT:
<sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=0c135a71-ddec-454c-a506-91079cb038d7;x-c=385a4453fc885c0bb6276a40d7796d3a/s/1/e1c45d052842415e9c0b3b0b04e32791>
CONTENT-LENGTH: 827
SUPPORTED: timer
CONTENT-TYPE: application/sdp
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SESSION-EXPIRES: 3600;refresher=uas
SERVER: Microsoft.PSTNHub.SIPProxy v.2020.4.20.2 i.EUWE.6
Best Regards,
--
Sent from:
http://opensips-open-sip-server.1449251.n2.nabble.com/OpenSIPS-Users-f1449235.html
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