Re: SDP Issue on NAT environment

Hello,
Yes of course. Here is some details :

Kamailio config :
alias="IP_PRIV_KAMAILIO_SITE_B"
listen=tcp:IP_PRIV_KAMAILIO_SITE_B:5060 advertise IP_PUBLIQUE_SITE_B:5060

I also configured RTP Engine :
interface = KAMAILIO_IP_PRIV_SITE_B!IP_PUBLIQUE_SITE_B
listen-ng = KAMAILIO_IP_PRIV_SITE_B:2223

Here is the SDP answering from SITE A to SITE B:
SIP/2.0 200 Answering
Record-Route:  <sip:IP_PUBLIQUE_SITE_A;transport=tcp;lr;ftag=F3D17100-4B77D8CB;did=541.30f2;nat=yes>
Record-Route:  <sip:IP_PUBLIQUE_SITE_B;transport=tcp;lr;ftag=F3D17100-4B77D8CB;did=541.d551;nat=yes>
Via:  SIP/2.0/TCP phone_site_B:5060;rport=60620;branch=z9hG4bK2D80151007ed0c01a8c0
From:  "22-3283278309681.ABCDPHONEB" <sip:101@KAMAILIO_IP_PRIV_SITE_B>;tag=F3D17100-4B77D8CB
To:  <sip:3283278309681.ABCD@SITE_A_DOMAIN>;tag=c2daa2041dba02fd
CSeq:  2 INVITE
Call-ID: b553f084-90e45fef-61ca1252@phone_site_B
Server:  baresip v3.15.0 (x86_64/Linux)
Contact:  <sip:phone_site_A.@IP_PUBLIQUE_SITE_A:5060;transport=tcp;alias=phone_site_A~55590~2>
Allow:  INVITE,ACK,BYE,CANCEL,OPTIONS,NOTIFY,INFO,MESSAGE,UPDATE,REFER
Supported:  gruu,replaces,norefersub
Content-Type:  application/sdp
Content-Length:  1153

v=0
o=- 1428244366 302624626 IN IP4 IP_PUBLIC_TURN_SITE_A
s=-
c=IN IP4 IP_PUBLIC_TURN_SITE_A
t=0 0
m=audio 41762 RTP/AVP 9 0 8 119
c=IN IP4 IP_PUBLIC_TURN_SITE_A
b=AS:128
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:119 telephone-event/8000
a=fmtp:119 0-15
a=rtcp:41763 IN IP4 IP_PUBLIC_TURN_SITE_A
a=sendrecv
a=ssrc:322326744 cname:sip:3283278309681.ABCD@SITE_A_DOMAIN
a=minptime:20
a=ptime:20
a=label:1
m=video 44252 RTP/AVP 109 110
c=IN IP4 IP_PUBLIC_TURN_SITE_A
b=AS:1920
a=rtpmap:109 H264/90000
a=fmtp:109 packetization-mode=0;profile-level-id=42e01f;max-mbps=108000;max-fs=3600;max-br=2048
a=rtpmap:110 H264/90000
a=fmtp:110 packetization-mode=1;profile-level-id=42e01f;max-mbps=108000;max-fs=3600;max-br=2048
a=rtcp:44253 IN IP4 IP_PUBLIC_TURN_SITE_A
a=sendrecv
a=ssrc:4213384512 cname:sip:3283278309681.ABCD@SITE_A_DOMAIN
a=framerate:30.00
a=rtcp-fb:* nack
a=rtcp-fb:* nack pli
a=content:main
a=label:2
m=application 43622 UDP/BFCP *
c=IN IP4 IP_PUBLIC_TURN_SITE_A
a=floorctrl:c-s
a=setup:actpass
a=confid:1005
a=userid:6
a=floorid:1 mstrm 3
a=connection:new
m=application 0 RTP/AVP 0
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