Hi Sergiu, thanks for your answered and your help.. sorry, I know that I don't send you any information..

I don't know if my problem is in Kamailio routing or in Teams..

Attach the trace, if any can help to try to fix my problem....

U IP-CLIENT:55977 -> SBC-IP:5060 #1
INVITE sip:+324@SBC-IP:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.1.37:55977;branch=z9hG4bK-d8754z-cc1ddf04086f0617-1---d8754z-;rport.
Max-Forwards: 70.
Contact: <sip:1005@IP-CLIENT:55977;rinstance=d27a6c712d24fdaa>.
To: <sip:+324@SBC-IP:5060>.
From: "1005"<sip:1005@SBC-IP:5060>;tag=2709ab10.
Call-ID: NDQ0OGQ1NDczNTA4ZDYwMDQyNjhkMzY1YTUxODFjNjc..
CSeq: 1 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY, REFER, INFO, MESSAGE.
Content-Type: application/sdp.
Supported: replaces.
User-Agent: 3CXPhone 6.0.26523.0.
Content-Length: 402.
.
v=0.
o=3cxVCE 34948695 84192900 IN IP4 192.168.1.37.
s=3cxVCE Audio Call.
c=IN IP4 192.168.1.37.
t=0 0.
m=audio 40044 RTP/AVP 0 8 3 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:8 PCMA/8000.
a=rtpmap:3 GSM/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=ptime:20.
a=sendrecv.
m=video 40040 RTP/AVP 34.
c=IN IP4 192.168.1.37.
a=rtpmap:34 H263/90000.
a=fmtp:34 QCIF=1;CIF=1;SQCIF=1;CIF4=1.
a=sendrecv.

#
U IP-CLIENT:55977 -> SBC-IP:5060 #3
ACK sip:+324@SBC-IP:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.1.37:55977;branch=z9hG4bK-d8754z-cc1ddf04086f0617-1---d8754z-;rport.
Max-Forwards: 70.
To: <sip:+324@SBC-IP:5060>;tag=9c964e500fa230af45469f6cd30aca2e.f5d4.
From: "1005"<sip:1005@SBC-IP:5060>;tag=2709ab10.
Call-ID: NDQ0OGQ1NDczNTA4ZDYwMDQyNjhkMzY1YTUxODFjNjc..
CSeq: 1 ACK.
Content-Length: 0.
.

#
U IP-CLIENT:55977 -> SBC-IP:5060 #4
INVITE sip:+324@SBC-IP:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.1.37:55977;branch=z9hG4bK-d8754z-dd2ee32c5f34be0e-1---d8754z-;rport.
Max-Forwards: 70.
Contact: <sip:1005@IP-CLIENT:55977;rinstance=d27a6c712d24fdaa>.
To: <sip:+324@SBC-IP:5060>.
From: "1005"<sip:1005@SBC-IP:5060>;tag=2709ab10.
Call-ID: NDQ0OGQ1NDczNTA4ZDYwMDQyNjhkMzY1YTUxODFjNjc..
CSeq: 2 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY, REFER, INFO, MESSAGE.
Content-Type: application/sdp.
Proxy-Authorization: Digest username="1005",realm="SBC-IP",nonce="XrKkD16youMQcuUoWZ37GidsTva8kHiI",uri="sip:+324@SBC-IP:5060",response="96a1ef1257ebfb5131a535791c828766",algorithm=MD5.
Supported: replaces.
User-Agent: 3CXPhone 6.0.26523.0.
Content-Length: 402.
.
v=0.
o=3cxVCE 34948695 84192900 IN IP4 192.168.1.37.
s=3cxVCE Audio Call.
c=IN IP4 192.168.1.37.
t=0 0.
m=audio 40044 RTP/AVP 0 8 3 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:8 PCMA/8000.
a=rtpmap:3 GSM/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=ptime:20.
a=sendrecv.
m=video 40040 RTP/AVP 34.
c=IN IP4 192.168.1.37.
a=rtpmap:34 H263/90000.
a=fmtp:34 QCIF=1;CIF=1;SQCIF=1;CIF4=1.
a=sendrecv.

#
U SBC-IP:5060 -> IP-CLIENT:55977 #5
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 192.168.1.37:55977;branch=z9hG4bK-d8754z-dd2ee32c5f34be0e-1---d8754z-;rport=55977;received=IP-CLIENT.
To: <sip:+324@SBC-IP:5060>.
From: "1005"<sip:1005@SBC-IP:5060>;tag=2709ab10.
Call-ID: NDQ0OGQ1NDczNTA4ZDYwMDQyNjhkMzY1YTUxODFjNjc..
CSeq: 2 INVITE.
Server: kamailio (5.2.1 (x86_64/linux)).
Content-Length: 0.
.

#
U SBC-IP:5060 -> IP-CLIENT:55977 #6
SIP/2.0 400 Bad Request.
FROM: "1005"<sip:1005@SBC-IP:5060>;tag=2709ab10.
TO: <sip:+324@SBC-IP:5060>.
CSEQ: 2 INVITE.
CALL-ID: NDQ0OGQ1NDczNTA4ZDYwMDQyNjhkMzY1YTUxODFjNjc..
VIA: SIP/2.0/UDP 192.168.1.37:55977;received=IP-CLIENT;branch=z9hG4bK-d8754z-dd2ee32c5f34be0e-1---d8754z-;rport=55977.
CONTENT-LENGTH: 0.
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY.
SERVER: Microsoft.PSTNHub.SIPProxy v.2020.4.25.1 i.EUWE.5.
.

#
U IP-CLIENT:55977 -> SBC-IP:5060 #7
ACK sip:+324@SBC-IP:5060 SIP/2.0.
Via: SIP/2.0/UDP 192.168.1.37:55977;branch=z9hG4bK-d8754z-dd2ee32c5f34be0e-1---d8754z-;rport.
Max-Forwards: 70.
To: <sip:+324@SBC-IP:5060>.
From: "1005"<sip:1005@SBC-IP:5060>;tag=2709ab10.
Call-ID: NDQ0OGQ1NDczNTA4ZDYwMDQyNjhkMzY1YTUxODFjNjc..
CSeq: 2 ACK.
Content-Length: 0.

If any can help me..... thanks..

El mar., 5 may. 2020 a las 18:26, Sergiu Pojoga (<pojogas@gmail.com>) escribió:
Cfg looks fine to me. I'm no clairvoyant to see why the 400 Bad request, can be anything.

The question "How do I call Teams" in this topic has been answered, leaving the troubleshooting pleasure to you.

On Tue, May 5, 2020 at 5:22 AM sip user <sipuser404@gmail.com> wrote:
Hi Sergiu..

I've configurated dispatcher like this:

modparam("dispatcher", "list_file", "/etc/kamailio/dispatcher.list")
modparam("dispatcher", "ds_probing_mode", 1)
modparam("dispatcher", "ds_ping_interval", 60)
modparam("dispatcher", "flags", 2)

When I try to call to Teams, I have:

 record_route_preset("SBC-DNS:5061;transport=tls", "SBC-IP:5060");
 add_rr_param(";r2=on");
 route(DISPATCH);
 route(RELAY);

And in route[DISPATCH]

if(!ds_select_dst("1", "0")) {
  send_reply("404", "No destination");
  exit;
}
xlog("L_INFO","********DISPATCH: VAMOS DE <$ru> VIA <$du>\n******");
t_on_failure("RTF_DISPATCH");
return;

failure_route[RTF_DISPATCH] {
        if(t_is_canceled()) {
                exit;
        }
        if(t_check_status("500") or (t_branch_timeout() and !t_branch_replied())) {
                if(ds_next_dst()) {
                        t_on_failure("RTF_DISPATCH");
                        route(RELAY);
                        exit;
                }
        }
}

But when I try to call to Teams, always receives 400 Bad request.

Are there any wrong in my kamailio.cfg??

Thanks

El lun., 4 may. 2020 a las 19:59, Sergiu Pojoga (<pojogas@gmail.com>) escribió:
"Teams" is nothing but a set of redundant SIP gateways, so either by setting next hop $du or a more elegant way is ds_select_dst if you're using Dispatcher.


On Mon, May 4, 2020 at 4:48 AM sip user <sipuser404@gmail.com> wrote:
Hi, I have connected Kamailio like SBC with Teams, and Calls from Teams to Kamailio works..

Now, I have problems with calls from Kamailio to Teams, not works.

How have I send the call? I set record_route_preset, but how send the call to Teams?

Thanks so much
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https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
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