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<p>Hello,</p>
<p>good it was sorted out and that you wrote what the solution, so
people reading the discussion in the archive know what was the
case about.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 23.09.21 19:32, Angelo Sipper wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CALWKM20T4p=STMshoKNYby6OXHaACGtkY=5u8KuDC_P5HtdqOA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div id="gmail-:16ph" class="gmail-Am gmail-aO9 gmail-Al
editable gmail-LW-avf gmail-tS-tW gmail-tS-tY"
aria-label="Σώμα μηνύματος" role="textbox"
aria-multiline="true" tabindex="1"
style="direction:ltr;min-height:85px">Hi Daniel,
<div><br>
</div>
<div>I got a response today from the provider escalation team
and they actually confirmed that it was a firewall
issue from their side. They were blocking their own BYE to
us....</div>
<div>They were expecting traffic from us from one only port
(as UDP behavior) and since we were sending from
different ports, as TCP does, their SBC was not able to
respond to us as their firewall was blocking all other
ports. </div>
<div>What can I say.... Anyway we now have this provider in
operation. Thank you very much and sorry for the big message
for no actual reason regarding the Kamailio.</div>
<div><br>
</div>
<div>Kind Regards,</div>
<div>Angelo</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Στις Τετ, 22 Σεπ 2021 στις
7:00 μ.μ., ο/η Angelo Sipper <<a
href="mailto:sippro97@gmail.com" moz-do-not-send="true">sippro97@gmail.com</a>>
έγραψε:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">Hi Daniel,
<div><br>
</div>
<div>Provider managed to add the transport=tcp in the
contact as you suggested and call flow was fine but,
another issue came up and I believe it is again TCP that
causes this issue.</div>
<div>If our side terminates the call, our Kamailio2 sends
the BYE and it is accepted from the provider side
terminating the call correctly.</div>
<div>When the far end terminates the call, providers send a
BYE that we never receive from the provider and our UAC
remains on call. If our UAC terminates the call after the
far end terminates the call we receive a 481 from the
provider as the call actually does not exist any more on
his side and this makes sense.</div>
<div>Even this is not the case, to be 100% sure we have even
completely disabled our firewall on the tests but we have
the same results.</div>
<div>Below I am sending you the provider trace that he sends
2 BYE to us without any response from us. These two BYE
never reached our side.</div>
<div>For testing we even changed the TCP listen port of
kamailio to 5080 to be separate ports from the UDP
which remains on 5060</div>
<div>Provider engineers cannot respond to this problem with
a resolution. </div>
<div>Can you please check if you can see something in the
trace that can identify the cause of this behavior?</div>
<div>Is it something I can change on our Kamailio2 config to
avoid this?</div>
<div><br>
</div>
<div>TRACE</div>
<div>======</div>
<div>INVITE <a
href="http://sip:123456789@sip.mydomain.com:5060"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com:5060</a>
SIP/2.0<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bK4e1.3a5eafdb0c6cb4f6b4fbaf7faface967.0<br>
Max-Forwards: 68<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>><br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11769 INVITE<br>
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO,
SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS<br>
Supported: replaces, 100rel, timer, norefersub<br>
Session-Expires: 1800<br>
Min-SE: 90<br>
Content-Type: application/sdp<br>
Content-Length: 324<br>
P-Asserted-Identity: <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>><br>
Contact:
<a class="moz-txt-link-rfc2396E" href="sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp"><sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp></a><br>
v=0<br>
o=- 3841298833 3841298833 IN IP4 50.50.50.184<br>
s=pjmedia<br>
b=AS:84<br>
t=0 0<br>
a=X-nat:0<br>
m=audio 27892 RTP/AVP 8 0 101<br>
c=IN IP4 50.50.50.184<br>
b=TIAS:64000<br>
a=ssrc:83234588 cname:6b760b5029f225e8<br>
a=rtpmap:8 PCMA/8000<br>
a=rtpmap:0 PCMU/8000<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-16<br>
a=sendrecv<br>
a=rtcp:27893<br>
<br>
<br>
>--- SEND ----------->-------------> [Message: 2
of 12 ] >------------>------------><br>
<br>
Date: 09-22-2021 Time: 08:27:16.00120<br>
<br>
SIP/2.0 183 Session Progress<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bK4e1.3a5eafdb0c6cb4f6b4fbaf7faface967.0<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11769 INVITE<br>
Contact:
<a class="moz-txt-link-rfc2396E" href="sip:123456789@200.200.200.209:5060;transport=tcp"><sip:123456789@200.200.200.209:5060;transport=tcp></a><br>
Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS<br>
Require: 100rel<br>
RSeq: 6618<br>
Content-Length: 242<br>
Content-Disposition: session; handling=required<br>
Content-Type: application/sdp<br>
v=0<br>
o=Sonus_UAC 21561 25962 IN IP4 200.200.200.209<br>
s=SIP Media Capabilities<br>
c=IN IP4 200.200.200.211<br>
t=0 0<br>
m=audio 27992 RTP/AVP 8 101<br>
a=rtpmap:8 PCMA/8000<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-15<br>
a=sendrecv<br>
a=maxptime:20<br>
<br>
<br>
<--- RECV -----------<-------------< [Message: 3
of 12 ] <------------<------------<<br>
<br>
Date: 09-22-2021 Time: 08:27:17.00047<br>
<br>
PRACK <a class="moz-txt-link-freetext" href="sip:123456789@200.200.200.209:5060;transport=tcp">sip:123456789@200.200.200.209:5060;transport=tcp</a>
SIP/2.0<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bKdd1.b4a7f8fbbf8027cc1b0a457f9e5963f7.0<br>
Max-Forwards: 68<br>
From: "MyUserName" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11770 PRACK<br>
RAck: 6618 11769 INVITE<br>
Content-Length: 0<br>
Contact:
<a class="moz-txt-link-rfc2396E" href="sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp"><sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp></a><br>
<br>
<br>
>--- SEND ----------->-------------> [Message: 4
of 12 ] >------------>------------><br>
<br>
Date: 09-22-2021 Time: 08:27:17.00050<br>
<br>
SIP/2.0 200 OK<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bKdd1.b4a7f8fbbf8027cc1b0a457f9e5963f7.0<br>
From: "MyUserName" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11770 PRACK<br>
Content-Length: 0<br>
<br>
<br>
>--- SEND ----------->-------------> [Message: 5
of 12 ] >------------>------------><br>
<br>
Date: 09-22-2021 Time: 08:27:17.00053<br>
<br>
SIP/2.0 183 Session Progress<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bK4e1.3a5eafdb0c6cb4f6b4fbaf7faface967.0<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11769 INVITE<br>
Require: 100rel<br>
RSeq: 6619<br>
Contact:
<a class="moz-txt-link-rfc2396E" href="sip:123456789@200.200.200.209:5060;transport=tcp"><sip:123456789@200.200.200.209:5060;transport=tcp></a><br>
Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS<br>
Content-Length: 242<br>
Content-Disposition: session; handling=required<br>
Content-Type: application/sdp<br>
v=0<br>
o=Sonus_UAC 21561 25962 IN IP4 200.200.200.209<br>
s=SIP Media Capabilities<br>
c=IN IP4 200.200.200.211<br>
t=0 0<br>
m=audio 27992 RTP/AVP 8 101<br>
a=rtpmap:8 PCMA/8000<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-15<br>
a=sendrecv<br>
a=maxptime:20<br>
<br>
<br>
<--- RECV -----------<-------------< [Message: 6
of 12 ] <------------<------------<<br>
<br>
Date: 09-22-2021 Time: 08:27:17.00059<br>
<br>
PRACK <a class="moz-txt-link-freetext" href="sip:123456789@200.200.200.209:5060;transport=tcp">sip:123456789@200.200.200.209:5060;transport=tcp</a>
SIP/2.0<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bKed1.fd8ecce909458a05324665afccdde954.0<br>
Max-Forwards: 68<br>
From: "MyUserName" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11771 PRACK<br>
RAck: 6619 11769 INVITE<br>
Content-Length: 0<br>
Contact:
<a class="moz-txt-link-rfc2396E" href="sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp"><sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp></a><br>
<br>
<br>
>--- SEND ----------->-------------> [Message: 7
of 12 ] >------------>------------><br>
<br>
Date: 09-22-2021 Time: 08:27:17.00062<br>
<br>
SIP/2.0 200 OK<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bKed1.fd8ecce909458a05324665afccdde954.0<br>
From: "MyUserName" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11771 PRACK<br>
Content-Length: 0<br>
<br>
<br>
>--- SEND ----------->-------------> [Message: 8
of 12 ] >------------>------------><br>
<br>
Date: 09-22-2021 Time: 08:27:20.00083<br>
<br>
SIP/2.0 200 OK<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bK4e1.3a5eafdb0c6cb4f6b4fbaf7faface967.0<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11769 INVITE<br>
Accept: application/sdp, application/isup,
application/dtmf, application/dtmf-relay, multipart/mixed<br>
Contact:
<a class="moz-txt-link-rfc2396E" href="sip:123456789@200.200.200.209:5060;transport=tcp"><sip:123456789@200.200.200.209:5060;transport=tcp></a><br>
Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS<br>
P-Asserted-Identity: <<a
href="mailto:sip%3A6932489919@MOBILE.PROVIDER.COM"
target="_blank" moz-do-not-send="true">sip:6932489919@MOBILE.PROVIDER.COM</a>;user=phone><br>
Require: timer<br>
Supported: timer<br>
Session-Expires: 1800;refresher=uas<br>
Content-Length: 242<br>
Content-Disposition: session; handling=required<br>
Content-Type: application/sdp<br>
v=0<br>
o=Sonus_UAC 21561 25962 IN IP4 200.200.200.209<br>
s=SIP Media Capabilities<br>
c=IN IP4 200.200.200.211<br>
t=0 0<br>
m=audio 27992 RTP/AVP 8 101<br>
a=rtpmap:8 PCMA/8000<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-15<br>
a=sendrecv<br>
a=maxptime:20<br>
<br>
<br>
<--- RECV -----------<-------------< [Message: 9
of 12 ] <------------<------------<<br>
<br>
Date: 09-22-2021 Time: 08:27:20.00102<br>
<br>
ACK <a class="moz-txt-link-freetext" href="sip:123456789@200.200.200.209:5060;transport=tcp">sip:123456789@200.200.200.209:5060;transport=tcp</a>
SIP/2.0<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bK4e1.d06307f54416ad3db79569f704d8658e.0<br>
Max-Forwards: 68<br>
From: "MyUserName" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11769 ACK<br>
Content-Length: 0<br>
Contact:
<a class="moz-txt-link-rfc2396E" href="sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp"><sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp></a><br>
<br>
<br>
>--- SEND ----------->-------------> [Message: 10
of 12 ] >------------>------------><br>
<br>
Date: 09-22-2021 Time: 08:27:26.00061<br>
<br>
BYE
<a class="moz-txt-link-freetext" href="sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp">sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp</a>
SIP/2.0<br>
Via: SIP/2.0/TCP
200.200.200.209:5060;branch=z9hG4bK0dB7cb270586eb0337b<br>
From: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
To: "987654321" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 9423 BYE<br>
Max-Forwards: 70<br>
Supported: 100rel<br>
Content-Length: 0<br>
<br>
<br>
>--- SEND ----------->-------------> [Message: 11
of 12 ] >------------>------------><br>
<br>
Date: 09-22-2021 Time: 08:27:32.00010<br>
<br>
BYE
<a class="moz-txt-link-freetext" href="sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp">sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp</a>
SIP/2.0<br>
Via: SIP/2.0/TCP
200.200.200.209:5060;branch=z9hG4bK0dB7cb270586eb0337b<br>
From: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
To: "987654321" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 9423 BYE<br>
Max-Forwards: 70<br>
Supported: 100rel<br>
Content-Length: 0<br>
<br>
<br>
<--- RECV -----------<-------------< [Message: 12
of 12 ] <------------<------------<<br>
<br>
Date: 09-22-2021 Time: 08:27:33.00021<br>
<br>
BYE <a class="moz-txt-link-freetext" href="sip:123456789@200.200.200.209:5060;transport=tcp">sip:123456789@200.200.200.209:5060;transport=tcp</a>
SIP/2.0<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bKbd1.38c5755274f4163db0542d5ec9549053.0<br>
Max-Forwards: 68<br>
From: "MyUserName" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=b695280bab3644b78ac5e09a5dba5ac4<br>
To: <<a href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank" moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0df944e5<br>
Call-ID: d7ecb3b2408a466ea3074d1b48499bfa<br>
CSeq: 11772 BYE<br>
User-Agent: MicroSIP/3.20.5<br>
Content-Length: 0<br>
Contact:
<a class="moz-txt-link-rfc2396E" href="sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp"><sip:btpsh-b6-614ae8ae-21085-1@50.50.50.182:5080;transport=tcp></a><br>
</div>
<div><br>
</div>
<div>Kind regards,<br>
</div>
<div>Angelo</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Στις Τετ, 22 Σεπ 2021 στις
9:12 π.μ., ο/η Daniel-Constantin Mierla <<a
href="mailto:miconda@gmail.com" target="_blank"
moz-do-not-send="true">miconda@gmail.com</a>> έγραψε:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div>
<p>Hello,<br>
</p>
<div>On 21.09.21 16:55, Angelo Sipper wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi Daniel,
<div><br>
</div>
<div>Thank you for your prompt response!<br>
</div>
<div><br>
</div>
<div>I sent the wrong trace with the added
transport=tcp test. Yes we tried to add the
transport=tcp on config to overcome this issue but
it was not resolved. I will contact the provider
to ask them to add the transport on their 183 and
I believe it will resolve the issue.</div>
<div>In case they cannot do this is there an
alternative to bypass this?</div>
</div>
</blockquote>
<p>you have the flexibility to set the transport to $du
or $ru and then relay. Or look at tm module, there are
functions that can enforce a specific transport layer.
Solutions can be made in config, but the best would be
that the provider fixes it, otherwise you have to make
a more complex config file to figure out if you have
to enforce the transport manually or not, assuming you
route calls to other endpoints that set the proper
transport value.<br>
</p>
<p>Cheers,<br>
Daniel<br>
</p>
<blockquote type="cite">
<div dir="ltr">
<div> As per now we have the save issue also on our
ACK and BYE replies we send to the provider which
is logical.</div>
<div><br>
</div>
<div>Kind regards,</div>
<div>Angelo</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Στις Τρί, 21 Σεπ
2021 στις 5:03 μ.μ., ο/η Daniel-Constantin Mierla
<<a href="mailto:miconda@gmail.com"
target="_blank" moz-do-not-send="true">miconda@gmail.com</a>>
έγραψε:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px
0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div>
<p>Hello,</p>
<p>the contact of the 183 has no transport
parameter, which means it is the default one,
respectively UDP. If the Provider wants
traffic over TCP, the contact has to be with
that transport parameter.<br>
</p>
<p>I see that incoming PRACK has R-URI without
transport parameter, but the one to be
forwarded has a malformed version where
transport=tcp is misplaced, probably due to a
wrong config operation. If you do it in
kamailio.cfg, you have to append
";transport=tcp" to $ru (whole r-uri), not to
$rU (only user part of r-uri).</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div>On 21.09.21 15:29, Angelo Sipper wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Correction
<div>UAC (OverTLS)
->(TLS)Kamailio1(UDP)->
(UDP)Kamailio2(TCP)-> (TCP)Provider<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">Στις Τρί,
21 Σεπ 2021 στις 4:28 μ.μ., ο/η Angelo
Sipper <<a
href="mailto:sippro97@gmail.com"
target="_blank" moz-do-not-send="true">sippro97@gmail.com</a>>
έγραψε:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div>Hello,</div>
<div><br>
</div>
<div>We have the following setup and I
am having trouble passing the PRACK
with correct protocol to the provider.</div>
<div><br>
</div>
<div>UAC (OverTLS) ->(UDP)Kamailio1
(UDP)-> (UDP)Kamailio2 (TCP)->
(TCP)Provider</div>
<div><br>
</div>
<div>UAC : 10.2.1.160 NATED to <a
href="http://50.50.50.50:5065/"
target="_blank"
moz-do-not-send="true">100.100.100.61</a> (TLS)</div>
<div>Kamailio1 Sockets: <a
href="http://170.170.170.210:5061/"
target="_blank"
moz-do-not-send="true">50.50.50.210:5061</a> (TLS),<a
href="http://170.170.170.210:5060/"
target="_blank"
moz-do-not-send="true">50.50.50.210:5060</a> (UDP)<br>
</div>
<div>Kamailio2 Sockets: 50.50.50.182<a
href="http://170.170.170.170:5060/"
target="_blank"
moz-do-not-send="true">:5060</a> (UDP)
50.50.50.182<a
href="http://170.170.170.170:5060/"
target="_blank"
moz-do-not-send="true">:5080</a> (TCP)</div>
<div>Provider: <a
href="http://200.200.200.193:5060/"
target="_blank"
moz-do-not-send="true">200.200.200.209:5060</a> (TCP)</div>
<div><br>
</div>
<div>We use dispatcher on Kamailio1
& Kamailio2</div>
<div>The invite goes fine from UCA up to
the provider and the provider
responses arrive to UAC fine.</div>
<div>The PRACK from UAC to kamailio1
goes fine to Kamaili02 but, Kamailio2
uses the UDP socket to send to the
provider so the PRACK does not
arrive to the provider and the call is
canceled.</div>
<div>If the provider is on UDP
everything works fine.<br>
</div>
<div><br>
</div>
<div>Below I have the trace. What should
I look for in the config to resolve
this wrong protocol/socket on the
PRACK?<br>
</div>
<div><br>
</div>
<div>Kamailio2 Details:</div>
<div><br>
</div>
<div>Sockets</div>
<div>
<div>======</div>
<div>listen=udp:<a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a><br>
listen=tcp: <a
href="http://50.50.50.182:5080"
target="_blank"
moz-do-not-send="true">50.50.50.182:5080</a><br>
</div>
</div>
<div><br>
</div>
<div>On the rr module I have</div>
<div>==================</div>
<div>modparam("rr", "enable_double_rr",
1)<br>
</div>
<div>modparam("rr", "append_fromtag", 1)<br>
</div>
<div>modparam("rr", "enable_full_lr", 1)<br>
</div>
<div><br>
</div>
<div>CONFIG REQINIT & WITHINDLG
PARTS<br>
</div>
<div>================================</div>
<div>
<div>route[REQINIT] {<br>
</div>
</div>
<div><br>
set_reply_no_connect();<br>
force_rport();<br>
<br>
if (!mf_process_maxfwd_header("10")) {<br>
xlog("L_ERROR","Too Many Hops
Rejecting!"); <br>
sl_send_reply("483","Too Many Hops");<br>
exit;<br>
}<br>
<br>
if(is_method("OPTIONS") &&
uri==myself && $rU==$null) {<br>
sl_send_reply("200","Keepalive");<br>
exit;<br>
}<br>
<br>
if(!sanity_check("1511", "7")) {<br>
xlog("Malformed SIP message from
$si:$sp sanity 1511\n");<br>
exit;<br>
}<br>
<br>
if(!sanity_check("17895", "7")) {<br>
xlog("Malformed SIP request from
$si:$sp sanity 17895\n");<br>
exit;<br>
}<br>
}<br>
</div>
<div><br>
</div>
<div>route[WITHINDLG] {<br>
</div>
<div> if (!has_totag()) return;<br>
<br>
if (loose_route()) {<br>
<br>
if (is_method("BYE")) {<br>
rtpengine_query();<br>
rtpengine_delete();<br>
}<br>
route(RELAY_OUT);<br>
}<br>
<br>
if ( is_method("ACK") ) {<br>
#if (t_lookup_request()) {<br>
if (t_check_trans()) {<br>
route(RELAY_OUT);<br>
exit;<br>
} else {<br>
# ACK without matching transaction ...
ignore and discard<br>
exit;<br>
}<br>
}<br>
<br>
sl_send_reply("404","Not Allowed");<br>
exit;<br>
}<br>
</div>
<div><br>
</div>
<div>TRACE</div>
<div>======</div>
<div> <a
href="http://50.50.50.210:5060"
target="_blank"
moz-do-not-send="true">50.50.50.210:5060</a>
<a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a>
<a
href="http://50.50.50.182:32818"
target="_blank"
moz-do-not-send="true">50.50.50.182:32818</a>
<a
href="http://200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">200.200.200.209:5060</a><br>
qqqqqqqqqqwqqqqqqq
qqqqqqqqqqwqqqqqqq
qqqqqqqqqqwqqqqqqqq
qqqqqqqqqqqwqqqqqqqqq<br>
a 15:31:11.787490 x INVITE
(SDP) x
x x<br>
a +0.003099 x
qqqqqqqqqqqqqqqqqqqqqqqqqq> x
x
x<br>
a 15:31:11.790589 x 100 trying --
your call is x
x x<br>
a +0.002220 x
<qqqqqqqqqqqqqqqqqqqqqqqqqq x
x
x<br>
a 15:31:11.792809 x
x
x INVITE (SDP) x<br>
a +0.020725 x
x
x qqqqqqqqqqqqqqqqqqqqqqqqqq> x<br>
a 15:31:11.813534 x
x
x 100 Trying x<br>
a +2.628884 x
x
x <qqqqqqqqqqqqqqqqqqqqqqqqqq x<br>
a 15:31:14.442418 x
x
x 183 Session Progress (SDP) x<br>
a +0.001572 x
x
x <qqqqqqqqqqqqqqqqqqqqqqqqqq x<br>
a 15:31:14.443990 x 183 Session
Progress (SDP) x
x x<br>
a +0.299221 x
<qqqqqqqqqqqqqqqqqqqqqqqqqq x
x
x<br>
a 15:31:14.743211 x PRACK
x
x x<br>
a +0.043114 x
qqqqqqqqqqqqqqqqqqqqqqqqqq> x
x
x<br>
a 15:31:14.786325 x
x
PRACK x<br>
a +0.448104 x
x
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>
x<br>
a 15:31:15.234429 x PRACK
x
x x<br>
a +0.045697 x
qqqqqqqqqqqqqqqqqqqqqqqq>>> x
x
x<br>
a 15:31:15.280126 x
x
PRACK x<br>
a +0.954153 x
x
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>>
x<br>
a 15:31:16.234279 x PRACK
x
x x<br>
a +0.045832 x
qqqqqqqqqqqqqqqqqqqqqqqq>>> x
x
x<br>
a 15:31:16.280111 x
x
PRACK x<br>
a +1.954170 x
x
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>>
x<br>
a 15:31:18.234281 x PRACK
x
x x<br>
a +0.045839 x
qqqqqqqqqqqqqqqqqqqqqqqq>>> x
x
x<br>
a 15:31:18.280120 x
x
PRACK x<br>
a +1.829676 x
x
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>>
x<br>
a 15:31:20.109796 x
x
x 183 Session Progress (SDP) x<br>
a +0.001460 x
x
x
<<<qqqqqqqqqqqqqqqqqqqqqqqq x<br>
a 15:31:20.111256 x 183 Session
Progress (SDP) x
x x<br>
a +2.123075 x
<<<qqqqqqqqqqqqqqqqqqqqqqqq x
x
x<br>
a 15:31:22.234331 x PRACK
x
x x<br>
a +0.045825 x
qqqqqqqqqqqqqqqqqqqqqqqq>>> x
x
x<br>
a 15:31:22.280156 x
x
PRACK x<br>
a +2.239640 x
x
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>>
x<br>
a 15:31:24.519796 x
x
x 486 Busy Here x<br>
a +0.000555 x
x
x <qqqqqqqqqqqqqqqqqqqqqqqqqq x<br>
a 15:31:24.520351 x
x
x ACK x<br>
a +0.008965 x
x
x qqqqqqqqqqqqqqqqqqqqqqqqqq> x<br>
a 15:31:24.529316 x 486 Busy
Here x
x x<br>
a +0.000835 x
<qqqqqqqqqqqqqqqqqqqqqqqqqq x
x
x<br>
a 15:31:24.530151 x ACK
x
x x<br>
a +1.704184 x
qqqqqqqqqqqqqqqqqqqqqqqqqq> x
x
x<br>
a 15:31:26.234335 x PRACK
x
x x<br>
a +0.045856 x
qqqqqqqqqqqqqqqqqqqqqqqqqq> x
x
x<br>
a 15:31:26.280191 x
x
PRACK x<br>
a +3.954734 x
x
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>>
x<br>
a 15:31:30.234925 x PRACK
x
x x<br>
x +0.045279 x
qqqqqqqqqqqqqqqqqqqqqqqq>>> x
x
x<br>
x 15:31:30.280204 x
x
PRACK x<br>
x +3.954116 x
x
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>>
x<br>
x 15:31:34.234320 x PRACK
x
x x <br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>2021/09/21 15:31:11.787490 <a
href="http://50.50.50.210:5060"
target="_blank"
moz-do-not-send="true">50.50.50.210:5060</a>
-> <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a><br>
INVITE <a
href="http://sip:123456789@sip.mydomain.com:5060"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com:5060</a>
SIP/2.0<br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.210;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes></a><br>
Via: SIP/2.0/UDP
50.50.50.210;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>
Max-Forwards: 69<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>><br>
Contact: "MyUserNAme" <a
moz-do-not-send="true"><sip:mycustomerid@10.2.1.160:58568;transport=TLS;ob;alias=100.100.100.61~48572~3></a><br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14320 INVITE<br>
Allow: PRACK, INVITE, ACK, BYE,
CANCEL, UPDATE, INFO, SUBSCRIBE,
NOTIFY, REFER, MESSAGE, OPTIONS<br>
Supported: replaces, 100rel, timer,
norefersub<br>
Session-Expires: 1800<br>
Min-SE: 90<br>
User-Agent: MicroSIP/3.20.5<br>
Content-Type: application/sdp<br>
Content-Length: 326<br>
P-Asserted-Identity: <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>><br>
<br>
v=0<br>
o=- 3841227071 3841227071 IN IP4
50.50.50.215<br>
s=pjmedia<br>
b=AS:84<br>
t=0 0<br>
a=X-nat:0<br>
m=audio 36448 RTP/AVP 8 0 101<br>
c=IN IP4 50.50.50.215<br>
b=TIAS:64000<br>
a=ssrc:2024148033
cname:4f2468fd611910fa<br>
a=rtpmap:8 PCMA/8000<br>
a=rtpmap:0 PCMU/8000<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-16<br>
a=sendrecv<br>
a=rtcp:36449<br>
<br>
<br>
2021/09/21 15:31:11.790589 <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a>
-> <a
href="http://50.50.50.210:5060"
target="_blank"
moz-do-not-send="true">50.50.50.210:5060</a><br>
SIP/2.0 100 trying -- your call is
important to us<br>
Via: SIP/2.0/UDP
50.50.50.210;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3;rport=5060<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>><br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14320 INVITE<br>
Server: myserver<br>
Content-Length: 0<br>
<br>
<br>
2021/09/21 15:31:11.792809 <a
href="http://50.50.50.182:32818"
target="_blank"
moz-do-not-send="true">50.50.50.182:32818</a>
-> <a
href="http://200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">200.200.200.209:5060</a><br>
INVITE <a
href="http://sip:123456789@sip.mydomain.com:5060"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com:5060</a>
SIP/2.0<br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.182:5080;transport=tcp;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.182;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.210;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes></a><br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bK37fe.254ecab744d678154779037580c59731.0<br>
Via: SIP/2.0/UDP
50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>
Max-Forwards: 68<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>><br>
Contact: "MyUserNAme" <a
moz-do-not-send="true"><sip:mycustomerid@10.2.1.160:58568;transport=TLS;ob;alias=100.100.100.61~48572~3></a><br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14320 INVITE<br>
Allow: PRACK, INVITE, ACK, BYE,
CANCEL, UPDATE, INFO, SUBSCRIBE,
NOTIFY, REFER, MESSAGE, OPTIONS<br>
Supported: replaces, 100rel, timer,
norefersub<br>
Session-Expires: 1800<br>
Min-SE: 90<br>
Content-Type: application/sdp<br>
Content-Length: 326<br>
P-Asserted-Identity: <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>><br>
<br>
v=0<br>
o=- 3841227071 3841227071 IN IP4
50.50.50.183<br>
s=pjmedia<br>
b=AS:84<br>
t=0 0<br>
a=X-nat:0<br>
m=audio 29308 RTP/AVP 8 0 101<br>
c=IN IP4 50.50.50.183<br>
b=TIAS:64000<br>
a=ssrc:2024148033
cname:4f2468fd611910fa<br>
a=rtpmap:8 PCMA/8000<br>
a=rtpmap:0 PCMU/8000<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-16<br>
a=sendrecv<br>
a=rtcp:29309<br>
<br>
<br>
2021/09/21 15:31:11.813534 <a
href="http://200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">200.200.200.209:5060</a>
-> <a
href="http://50.50.50.182:32818"
target="_blank"
moz-do-not-send="true">50.50.50.182:32818</a><br>
SIP/2.0 100 Trying<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bK37fe.254ecab744d678154779037580c59731.0<br>
Via: SIP/2.0/UDP
50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14320 INVITE<br>
Content-Length: 0<br>
<br>
<br>
2021/09/21 15:31:14.442418 <a
href="http://200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">200.200.200.209:5060</a>
-> <a
href="http://50.50.50.182:32818"
target="_blank"
moz-do-not-send="true">50.50.50.182:32818</a><br>
SIP/2.0 183 Session Progress<br>
Via: SIP/2.0/TCP
50.50.50.182:5080;branch=z9hG4bK37fe.254ecab744d678154779037580c59731.0<br>
Via: SIP/2.0/UDP
50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14320 INVITE<br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.182:5080;transport=tcp;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.182:5060;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.210:5060;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes></a><br>
Contact: <<a
href="http://sip:123456789@200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">sip:123456789@200.200.200.209:5060</a>><br>
Allow:
INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS<br>
Require: 100rel<br>
RSeq: 1509<br>
Content-Length: 241<br>
Content-Disposition: session;
handling=required<br>
Content-Type: application/sdp<br>
<br>
v=0<br>
o=Sonus_UAC 12038 7929 IN IP4
200.200.200.209<br>
s=SIP Media Capabilities<br>
c=IN IP4 200.200.200.212<br>
t=0 0<br>
m=audio 17366 RTP/AVP 8 101<br>
a=rtpmap:8 PCMA/8000<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-15<br>
a=sendrecv<br>
a=maxptime:20<br>
<br>
<br>
2021/09/21 15:31:14.443990 <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a>
-> <a
href="http://50.50.50.210:5060"
target="_blank"
moz-do-not-send="true">50.50.50.210:5060</a><br>
SIP/2.0 183 Session Progress<br>
Via: SIP/2.0/UDP
50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias<br>
From: 987654321 <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14320 INVITE<br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.182:5080;transport=tcp;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.182:5060;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.210:5060;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes></a><br>
Record-Route: <a
moz-do-not-send="true"><sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes></a><br>
Contact: <<a
href="http://sip:123456789@200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">sip:123456789@200.200.200.209:5060</a>><br>
Allow:
INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS<br>
Require: 100rel<br>
RSeq: 1509<br>
Content-Length: 253<br>
Content-Disposition: session;
handling=required<br>
Content-Type: application/sdp<br>
<br>
v=0<br>
o=Sonus_UAC 12038 7929 IN IP4
50.50.50.183<br>
s=SIP Media Capabilities<br>
c=IN IP4 50.50.50.183<br>
t=0 0<br>
m=audio 29320 RTP/AVP 8 101<br>
a=maxptime:20<br>
a=rtpmap:8 PCMA/8000<br>
a=rtpmap:101 telephone-event/8000<br>
a=fmtp:101 0-15<br>
a=sendrecv<br>
a=rtcp:29321<br>
<br>
<br>
2021/09/21 15:31:14.743211 <a
href="http://50.50.50.210:5060"
target="_blank"
moz-do-not-send="true">50.50.50.210:5060</a>
-> <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a><br>
PRACK <a
href="http://sip:123456789@200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">sip:123456789@200.200.200.209:5060</a>
SIP/2.0<br>
Via: SIP/2.0/UDP
50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>
Max-Forwards: 69<br>
From: "MyUserNAme" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14321 PRACK<br>
Route: <a moz-do-not-send="true"><sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Route: <a moz-do-not-send="true"><sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
RAck: 1509 14320 INVITE<br>
Content-Length: 0<br>
<br>
<br>
2021/09/21 15:31:14.786325 <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a>
-> <a
href="http://200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">200.200.200.209:5060</a><br>
PRACK <a moz-do-not-send="true">sip:123456789transport=</a><a
href="http://tcp@200.200.200.209:5060" target="_blank"
moz-do-not-send="true">tcp@200.200.200.209:5060</a>
SIP/2.0<br>
Via: SIP/2.0/UDP
50.50.50.182;branch=z9hG4bK47fe.3406fe45bb75c3e955b6aa67e53aff58.0<br>
Via: SIP/2.0/UDP
50.50.50.210;rport=5060;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>
Max-Forwards: 68<br>
From: "MyUserNAme" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14321 PRACK<br>
RAck: 1509 14320 INVITE<br>
Content-Length: 0<br>
<br>
<br>
2021/09/21 15:31:15.234429 <a
href="http://50.50.50.210:5060"
target="_blank"
moz-do-not-send="true">50.50.50.210:5060</a>
-> <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a><br>
PRACK <a
href="http://sip:123456789@200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">sip:123456789@200.200.200.209:5060</a>
SIP/2.0<br>
Via: SIP/2.0/UDP
50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>
Max-Forwards: 69<br>
From: "MyUserNAme" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14321 PRACK<br>
Route: <a moz-do-not-send="true"><sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Route: <a moz-do-not-send="true"><sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
RAck: 1509 14320 INVITE<br>
Content-Length: 0<br>
<br>
<br>
2021/09/21 15:31:15.280126 <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a>
-> <a
href="http://200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">200.200.200.209:5060</a><br>
PRACK <a moz-do-not-send="true">sip:123456789transport=</a><a
href="http://tcp@200.200.200.209:5060" target="_blank"
moz-do-not-send="true">tcp@200.200.200.209:5060</a>
SIP/2.0<br>
Via: SIP/2.0/UDP
50.50.50.182;branch=z9hG4bK47fe.3406fe45bb75c3e955b6aa67e53aff58.0<br>
Via: SIP/2.0/UDP
50.50.50.210;rport=5060;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>
Max-Forwards: 68<br>
From: "MyUserNAme" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14321 PRACK<br>
RAck: 1509 14320 INVITE<br>
Content-Length: 0<br>
<br>
<br>
2021/09/21 15:31:16.234279 <a
href="http://50.50.50.210:5060"
target="_blank"
moz-do-not-send="true">50.50.50.210:5060</a>
-> <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a><br>
PRACK <a
href="http://sip:123456789@200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">sip:123456789@200.200.200.209:5060</a>
SIP/2.0<br>
Via: SIP/2.0/UDP
50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>
Max-Forwards: 69<br>
From: "MyUserNAme" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14321 PRACK<br>
Route: <a moz-do-not-send="true"><sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Route: <a moz-do-not-send="true"><sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
RAck: 1509 14320 INVITE<br>
Content-Length: 0<br>
<br>
<br>
2021/09/21 15:31:16.280111 <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a>
-> <a
href="http://200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">200.200.200.209:5060</a><br>
PRACK <a moz-do-not-send="true">sip:123456789transport=</a><a
href="http://tcp@200.200.200.209:5060" target="_blank"
moz-do-not-send="true">tcp@200.200.200.209:5060</a>
SIP/2.0<br>
Via: SIP/2.0/UDP
50.50.50.182;branch=z9hG4bK47fe.3406fe45bb75c3e955b6aa67e53aff58.0<br>
Via: SIP/2.0/UDP
50.50.50.210;rport=5060;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>
Max-Forwards: 68<br>
From: "MyUserNAme" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14321 PRACK<br>
RAck: 1509 14320 INVITE<br>
Content-Length: 0<br>
<br>
<br>
2021/09/21 15:31:18.234281 <a
href="http://50.50.50.210:5060"
target="_blank"
moz-do-not-send="true">50.50.50.210:5060</a>
-> <a
href="http://50.50.50.182:5060"
target="_blank"
moz-do-not-send="true">50.50.50.182:5060</a><br>
PRACK <a
href="http://sip:123456789@200.200.200.209:5060"
target="_blank"
moz-do-not-send="true">sip:123456789@200.200.200.209:5060</a>
SIP/2.0<br>
Via: SIP/2.0/UDP
50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3<br>
Via: SIP/2.0/TLS
10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias<br>
Max-Forwards: 69<br>
From: "MyUserNAme" <<a
href="mailto:sip%3A987654321@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:987654321@sip.mydomain.com</a>>;tag=73622588a6084d8ba1bca54781e5094d<br>
To: <<a
href="mailto:sip%3A123456789@sip.mydomain.com"
target="_blank"
moz-do-not-send="true">sip:123456789@sip.mydomain.com</a>>;tag=gK0d8c9073<br>
Call-ID:
846ffb2f076848c5b8edc876fa1c0d9b<br>
CSeq: 14321 PRACK<br>
Route: <a moz-do-not-send="true"><sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
Route: <a moz-do-not-send="true"><sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1></a><br>
RAck: 1509 14320 INVITE<br>
Content-Length: 0<br>
<br>
</div>
<div>Any help will be much appreciated.</div>
<div><br>
</div>
<div>Kind regards,<br>
</div>
<div>Angelo</div>
</div>
</blockquote>
</div>
<br>
<fieldset></fieldset>
<pre>__________________________________________________________
Kamailio - Users Mailing List - Non Commercial Discussions
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</pre>
</blockquote>
<pre cols="72">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" moz-do-not-send="true">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank" moz-do-not-send="true">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank" moz-do-not-send="true">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - Online
Nov 08-11, 2021 (Europe Timezone) - Nov 22-25, 2021 (America Timezone)
* <a href="https://www.asipto.com/sw/kamailio-advanced-training-online/" target="_blank" moz-do-not-send="true">https://www.asipto.com/sw/kamailio-advanced-training-online/</a></pre>
</div>
</blockquote>
</div>
</blockquote>
<pre cols="72">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" moz-do-not-send="true">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank" moz-do-not-send="true">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank" moz-do-not-send="true">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - Online
Nov 08-11, 2021 (Europe Timezone) - Nov 22-25, 2021 (America Timezone)
* <a href="https://www.asipto.com/sw/kamailio-advanced-training-online/" target="_blank" moz-do-not-send="true">https://www.asipto.com/sw/kamailio-advanced-training-online/</a></pre>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - Online
Nov 08-11, 2021 (Europe Timezone) - Nov 22-25, 2021 (America Timezone)
* <a class="moz-txt-link-freetext" href="https://www.asipto.com/sw/kamailio-advanced-training-online/">https://www.asipto.com/sw/kamailio-advanced-training-online/</a></pre>
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