18 Feb
2020
18 Feb
'20
5:06 p.m.
Hello list,
its been about one month for me playing with kamailio and I need some help
to sort out a real life situation.
I followed this guide https://skalatan.de/en/blog/kamailio-sbc-teams; great
article, also got some inspiration from here
https://blog.opensips.org/2019/09/16/opensips-as-ms-teams-sbc/..articles
look very similar.
I manged to get my calls out to kamailio from TEAMS it works perfectly call
gets connected and codec negotiation is fine, but I am facing issue geting
the call inbound to TEAMS.
My invite looks like this:
========================
U 217.26.163.205:5060 -> 52.114.75.24:5061 #22
INVITE sip:+37360844269@sip.pstnhub.microsoft.com:5061 SIP/2.0.
Record-Route: <sip:sbc.pride.md:5061;transport=tls;lr>.
Record-Route: <sip:217.26.163.205:5061;nat=yes;lr>.
Via: SIP/2.0/UDP
217.26.163.205;branch=z9hG4bK7838.7417f50ed201fcada9609f5b7c4e520f.0.
Via: SIP/2.0/UDP 192.168.169.102:5060
;received=46.214.187.67;branch=z9hG4bK80e3f7e5cc50ea11806b6eeeb899592c;rport=5060.
From: "+37379844267" <sip:+37379844267@sbc.pride.md>;tag=1604785394.
To: "+37360844269" <sip:+37360844269@sip.pstnhub.microsoft.com:5061
;user=phone>.
Call-ID: 80E3F7E5-CC50-EA11-8069-6EEEB899592C(a)192.168.169.102.
CSeq: 227 INVITE.
sip:+37379844267@192.168.169.102:5060;gr=008A94E3-CA50-EA11-805B-6EEEB899592C;alias=46.214.187.67~5060~1Content-Type:
application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, INFO, MESSAGE, NOTIFY, OPTIONS, REFER,
UPDATE, PRACK.
Max-Forwards: 69.
User-Agent: SIPPER for PhonerLite.
Session-Expires: 1800.
Supported: 100rel, replaces, from-change, gruu, timer.
P-Preferred-Identity: <sip:+37379844267@sbc.pride.md>.
Content-Length: 362.
Contact: <sip:+37379844267@sbc.pride.md:5061;user=phone;transport=tls>.
.
v=0.
o=- 2307737351 1 IN IP4 217.26.163.205.
s=SIPPER for PhonerLite.
c=IN IP4 217.26.163.205.
t=0 0.
m=audio 36864 RTP/SAVP 8 101.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=crypto:1 AES_CM_128_HMAC_SHA1_80
inline:owGy5+mMZNyO5+9lFmUUOK3WqpEsxJH0+jtWz
===============================================
Anybody has a good invite exaple for Teams?
Or do you see any issue with my invite? I do use :
record_route_preset("sbc.pride.md:5061;transport=tls","217.26.163.205:5060
;nat=yes");
add_rr_param(";r2=on");
before sending this out.
Please let me know if you can help.
Thanks.
Vitalie.