[SR-Users] No ACK from MS Teams

[Pepelux]

If it can help you ... this is a working example:

tag: snd
pid: 19012
process: 1
time: 1612951019.957348
date: Wed Feb 10 10:56:59 2021
proto: tls ipv4
srcip: SBC-IP-ADDR
srcport: 5061
dstip: 52.114.76.76
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 200 OK
Via: SIP/2.0/TLS 52.114.76.76:5061;branch=z9hG4bK9984dd75
Record-Route: <sip:SBC-DNS-DOMAIN:5060;r2=on;lr>
Record-Route: <sip:SBC-DNS-DOMAIN:5061;transport=tls;r2=on;lr>
Record-Route: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>
From: Pepelux<sip:+YYYYYYYYYYY at sip.pstnhub.microsoft.com:5061
;user=phone>;tag=20cc826cdb36430089baeefcaa846f4a
To: <sip:+XXXXXXXXXXX at SBC-DNS-DOMAIN:5061;user=phone>;tag=as075f399f
Call-ID: b81c3635f25b55a8b6aa2d4943624a16
CSeq: 1 INVITE
Server: Asterisk PBX
Allow:sINVITE, ACK, CANCEL, OPTIONS, BYE, SUBSCRIBE, NOTIFY, INFO, PUBLISH,
MESSAGE
Supported: replaces
Contact: <sip:+XXXXXXXXXXX at ASTERISK-IP-ADDR:5060>
Content-Type: application/sdp
Content-Length: 614

v=0
o=root 794961255 794961255 IN IP4 SBC-IP-ADDR
s=Asterisk PBX
c=IN IP4 SBC-IP-ADDR
t=0 0
m=audio 36834 RTP/SAVP 0 8 101
a=maxptime:150
a=mid:1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=sendrecv
a=rtcp:36835
a=crypto:1 AES_CM_128_HMAC_SHA1_80
inline:iPGdIbVhkYq+7b4QU7selA9ymifeEN07VTVSfhmR
a=ptime:20
a=ice-ufrag:y9FpiQul
a=ice-pwd:IBAulXNNVx2fqpFE1K9BzLYbuG
a=candidate:MLkUNexgYqowLxtY 1 UDP 2130706431 SBC-IP-ADDR 36834 typ host
a=candidate:MLkUNexgYqowLxtY 2 UDP 2130706430 SBC-IP-ADDR 36835 typ host

Cheers

On Thu, 11 Feb 2021 at 14:28, Phillman25 Kyriacou <phillman25 at gmail.com>
wrote:

> Hi Guys
>
> Thanks for all your recommendations.
>
> I did the change and rr headers only show the fqdn of Kamailio as you can
> see below in the 200 OK sent back to MS Teams, however still the same issue
> no ACK.
>
> ||||||||||||||||||||
> ====================
> tag: snd
> pid: 31232
> process: 6
> time: 1613047849.768857
> date: Thu Feb 11 14:50:49 2021
> proto: tls ipv4
> srcip: 82.102.42.58
> srcport: 5061
> dstip: 52.114.132.46
> dstport: 5061
> ~~~~~~~~~~~~~~~~~~~~
> SIP/2.0 200 OK
> Via: SIP/2.0/TLS 52.114.132.46:5061;branch=z9hG4bK4f5c9b66
> Record-Route: <sip:sbc.intelligentsupport.eu:5060
> ;ftag=dcea3c9546914ff8826afca13260da1c;lr=on>
> Record-Route: <sip:sbc.intelligentsupport.eu:5061
> ;transport=tls;ftag=dcea3c9546914ff8826afca13260da1c;lr=on>
> Record-Route: <sip:sip-du-a-us.pstnhub.microsoft.com:5061
> ;transport=tls;lr>
> From: Phillip Kyriacou<sip:+35722010058 at sip.pstnhub.microsoft.com:5061
> ;user=phone>;tag=dcea3c9546914ff8826afca13260da1c
> To: <sip:+35796552237 at sbc.intelligentsupport.eu:5061
> ;user=phone>;tag=as63d965d3
> Call-ID: 43f0f0be2fa05b408c81736dbe392aef
> CSeq: 1 INVITE
> Server: MediaGW V1.0
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
> PUBLISH, MESSAGE
> Supported: replaces, timer
> Session-Expires: 1800;refresher=uas
> Contact: <sip:+35796552237 at 82.102.42.52:5060>
> Content-Type: application/sdp
> Require: timer
> Content-Length: 339
>
> v=0
> o=root 601931926 601931926 IN IP4 82.102.42.52
> s=ASTERISK
> c=IN IP4 82.102.42.52
> t=0 0
> m=audio 16360 RTP/SAVP 0 8 101
> a=crypto:1 AES_CM_128_HMAC_SHA1_80
> inline:IyrJsjVV0w5ORJQ3OJB0r8iyRZU+1lMjg4i9vzC2
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-16
> a=maxptime:150
> a=sendrecv
> ||||||||||||||||||||
> ====================
> _______________________________________________
> 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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