Hello,
Currently configuring a CUBe to work with Teams and an ISP, I struggle to set up the calls from Teams.
It talks about SSRC and Multiplexing media which I don't really understand not being very familiar with sdp...
I face a problem where Teams sends ACK and then a BYE that cancel the calls and show the following error messages :
Apr 25 17:30:11: //520/69DC97E68269/SIP/Msg/ccsipDisplayMsg:
Sent:
SIP/2.0 200 OK
Via: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bKa90c4817
From: "HQ692gw-teams1"<sip:+33296086769@sip.pstnhub.microsoft.com:5061;user=phone>;tag=508306c997064b6082727de183c1494c
To: <sip:+33296086772@hq692gw.msvisit6.one.equant.net:5064;user=phone>;tag=8B8225-1A87
Date: Mon, 25 Apr 2022 15:30:04 GMT
Call-ID: deb864c296ab5eb7868a3200c21f500e
CSeq: 1 INVITE
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
Allow-Events: telephone-event
Contact: <sip:+33296086772@hq692gw.msvisit6.one.equant.net:5064;transport=tls>
Record-Route: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>
Supported: replaces
Supported: sdp-anat
Server: Cisco-SIPGateway/IOS-17.3.4a
X-MS-SBC: Cisco UBE/ISR4351/IOS-17.3.4a
Session-ID: 36799b41c4265822ba181507a561aff6;remote=0ea8c5ac71415daa81d2c17c65f4b331
Session-Expires: 3600;refresher=uac
Require: timer
Supported: timer
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 486
v=0
o=CiscoSystemsSIP-GW-UserAgent 9854 867 IN IP4 6.6.92.129
s=SIP Call
c=IN IP4 194.250.125.218
t=0 0
a=ice-lite
m=audio 8080 RTP/SAVP 8 101
c=IN IP4 194.250.125.218
a=mid:1
a=label:main-audio
a=label:main-audio
a=rtcp:8081 IN IP4 194.250.125.218
a=ice-ufrag:hP9m
a=ice-pwd:Jvuf5dr4dClrHZvzxZs8o3
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Apr 25 17:30:11: //521/69DC97E68269/SIP/Msg/ccsipDisplayMsg:
Apr 25 17:30:11: //520/69DC97E68269/SIP/Msg/ccsipDisplayMsg:
Received:
ACK sip:+33296086772@hq692gw.msvisit6.one.equant.net:5064;transport=tls SIP/2.0
FROM: "HQ692gw-teams1"<sip:+33296086769@sip.pstnhub.microsoft.com:5061;user=phone>;tag=508306c997064b6082727de183c1494c
TO: <sip:+33296086772@hq692gw.msvisit6.one.equant.net:5064>;user=phone;tag=8B8225-1A87
CSEQ: 1 ACK
CALL-ID: deb864c296ab5eb7868a3200c21f500e
MAX-FORWARDS: 70
VIA: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bK21c0b4c0
CONTACT: <sip:api-du-a-euno.pstnhub.microsoft.com:443;x-i=6ded8518-ae90-40c6-8edc-dec44004f24a;x-c=deb864c296ab5eb7868a3200c21f500e/d/8/557707f5de4f40f2bf3fb64e12ef886b>
CONTENT-LENGTH: 0
USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2022.4.18.2 i.EUNO.10
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
Apr 25 17:30:13: //520/69DC97E68269/SIP/Msg/ccsipDisplayMsg:
Received:
BYE sip:+33296086772@hq692gw.msvisit6.one.equant.net:5064;transport=tls SIP/2.0
FROM: "HQ692gw-teams1"<sip:+33296086769@sip.pstnhub.microsoft.com:5061;user=phone>;tag=508306c997064b6082727de183c1494c
TO: <sip:+33296086772@hq692gw.msvisit6.one.equant.net:5064>;user=phone;tag=8B8225-1A87
CSEQ: 2 BYE
CALL-ID: deb864c296ab5eb7868a3200c21f500e
MAX-FORWARDS: 70
VIA: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bK6ab33c8f
REASON: Q.850;cause=79;text="6ded8518-ae90-40c6-8edc-dec44004f24a;InternalDiagCode: MultiplexingMediaSsrcRangeMissing, InternalErrorPhrase: Multiplexed media description does not specify an SSRC range (x-ssrc-range or x-multi-stream)"
CONTACT: <sip:api-du-a-euno.pstnhub.microsoft.com:443;x-i=6ded8518-ae90-40c6-8edc-dec44004f24a;x-c=deb864c296ab5eb7868a3200c21f500e/d/8/557707f5de4f40f2bf3fb64e12ef886b>
CONTENT-LENGTH: 0
USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2022.4.18.2 i.EUNO.10
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
P-ASSERTED-IDENTITY: <tel:+33296086769>,<sip:hq692gw-teams1@msvisit6.one.equant.net>
PRIVACY: id
