Στις Τρί, 21 Σεπ 2021 στις 5:03 μ.μ., ο/η Daniel-Constantin Mierla <miconda@gmail.com> έγραψε:

Hello,

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.

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).

Cheers,
Daniel

On 21.09.21 15:29, Angelo Sipper wrote:
Correction
UAC (OverTLS) ->(TLS)Kamailio1(UDP)-> (UDP)Kamailio2(TCP)-> (TCP)Provider

Στις Τρί, 21 Σεπ 2021 στις 4:28 μ.μ., ο/η Angelo Sipper <sippro97@gmail.com> έγραψε:

Hello,

We have the following setup and I am having trouble passing the PRACK with correct protocol to the provider.

UAC (OverTLS) ->(UDP)Kamailio1 (UDP)-> (UDP)Kamailio2 (TCP)-> (TCP)Provider

UAC : 10.2.1.160 NATED to 100.100.100.61 (TLS)

Kamailio1 Sockets: 50.50.50.210:5061 (TLS),50.50.50.210:5060 (UDP)

Kamailio2 Sockets: 50.50.50.182:5060 (UDP) 50.50.50.182:5080 (TCP)

Provider: 200.200.200.209:5060 (TCP)

We use dispatcher on Kamailio1 & Kamailio2

The invite goes fine from UCA up to the provider and the provider responses arrive to UAC fine.

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.

If the provider is on UDP everything works fine.

Below I have the trace. What should I look for in the config to resolve this wrong protocol/socket on the PRACK?

Kamailio2 Details:

Sockets

======

listen=udp:50.50.50.182:5060
listen=tcp: 50.50.50.182:5080

On the rr module I have

==================

modparam("rr", "enable_double_rr", 1)

modparam("rr", "append_fromtag", 1)

modparam("rr", "enable_full_lr", 1)

CONFIG REQINIT & WITHINDLG PARTS

================================

route[REQINIT] {

set_reply_no_connect();
force_rport();

if (!mf_process_maxfwd_header("10")) {
xlog("L_ERROR","Too Many Hops Rejecting!");
sl_send_reply("483","Too Many Hops");
exit;
}

if(is_method("OPTIONS") && uri==myself && $rU==$null) {
sl_send_reply("200","Keepalive");
exit;
}

if(!sanity_check("1511", "7")) {
xlog("Malformed SIP message from $si:$sp sanity 1511\n");
exit;
}

if(!sanity_check("17895", "7")) {
xlog("Malformed SIP request from $si:$sp sanity 17895\n");
exit;
}
}

route[WITHINDLG] {

if (!has_totag()) return;

if (loose_route()) {

if (is_method("BYE")) {
rtpengine_query();
rtpengine_delete();
}
route(RELAY_OUT);
}

if ( is_method("ACK") ) {
#if (t_lookup_request()) {
if (t_check_trans()) {
route(RELAY_OUT);
exit;
} else {
# ACK without matching transaction ... ignore and discard
exit;
}
}

sl_send_reply("404","Not Allowed");
exit;
}

TRACE

======

50.50.50.210:5060 50.50.50.182:5060 50.50.50.182:32818 200.200.200.209:5060
qqqqqqqqqqwqqqqqqq qqqqqqqqqqwqqqqqqq qqqqqqqqqqwqqqqqqqq qqqqqqqqqqqwqqqqqqqqq
a 15:31:11.787490 x INVITE (SDP) x x x
a +0.003099 x qqqqqqqqqqqqqqqqqqqqqqqqqq> x x x
a 15:31:11.790589 x 100 trying -- your call is x x x
a +0.002220 x <qqqqqqqqqqqqqqqqqqqqqqqqqq x x x
a 15:31:11.792809 x x x INVITE (SDP) x
a +0.020725 x x x qqqqqqqqqqqqqqqqqqqqqqqqqq> x
a 15:31:11.813534 x x x 100 Trying x
a +2.628884 x x x <qqqqqqqqqqqqqqqqqqqqqqqqqq x
a 15:31:14.442418 x x x 183 Session Progress (SDP) x
a +0.001572 x x x <qqqqqqqqqqqqqqqqqqqqqqqqqq x
a 15:31:14.443990 x 183 Session Progress (SDP) x x x
a +0.299221 x <qqqqqqqqqqqqqqqqqqqqqqqqqq x x x
a 15:31:14.743211 x PRACK x x x
a +0.043114 x qqqqqqqqqqqqqqqqqqqqqqqqqq> x x x
a 15:31:14.786325 x x PRACK x
a +0.448104 x x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq> x
a 15:31:15.234429 x PRACK x x x
a +0.045697 x qqqqqqqqqqqqqqqqqqqqqqqq>>> x x x
a 15:31:15.280126 x x PRACK x
a +0.954153 x x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x
a 15:31:16.234279 x PRACK x x x
a +0.045832 x qqqqqqqqqqqqqqqqqqqqqqqq>>> x x x
a 15:31:16.280111 x x PRACK x
a +1.954170 x x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x
a 15:31:18.234281 x PRACK x x x
a +0.045839 x qqqqqqqqqqqqqqqqqqqqqqqq>>> x x x
a 15:31:18.280120 x x PRACK x
a +1.829676 x x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x
a 15:31:20.109796 x x x 183 Session Progress (SDP) x
a +0.001460 x x x <<<qqqqqqqqqqqqqqqqqqqqqqqq x
a 15:31:20.111256 x 183 Session Progress (SDP) x x x
a +2.123075 x <<<qqqqqqqqqqqqqqqqqqqqqqqq x x x
a 15:31:22.234331 x PRACK x x x
a +0.045825 x qqqqqqqqqqqqqqqqqqqqqqqq>>> x x x
a 15:31:22.280156 x x PRACK x
a +2.239640 x x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x
a 15:31:24.519796 x x x 486 Busy Here x
a +0.000555 x x x <qqqqqqqqqqqqqqqqqqqqqqqqqq x
a 15:31:24.520351 x x x ACK x
a +0.008965 x x x qqqqqqqqqqqqqqqqqqqqqqqqqq> x
a 15:31:24.529316 x 486 Busy Here x x x
a +0.000835 x <qqqqqqqqqqqqqqqqqqqqqqqqqq x x x
a 15:31:24.530151 x ACK x x x
a +1.704184 x qqqqqqqqqqqqqqqqqqqqqqqqqq> x x x
a 15:31:26.234335 x PRACK x x x
a +0.045856 x qqqqqqqqqqqqqqqqqqqqqqqqqq> x x x
a 15:31:26.280191 x x PRACK x
a +3.954734 x x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x
a 15:31:30.234925 x PRACK x x x
x +0.045279 x qqqqqqqqqqqqqqqqqqqqqqqq>>> x x x
x 15:31:30.280204 x x PRACK x
x +3.954116 x x qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq>>> x
x 15:31:34.234320 x PRACK x x x

2021/09/21 15:31:11.787490 50.50.50.210:5060 -> 50.50.50.182:5060
INVITE sip:123456789@sip.mydomain.com:5060 SIP/2.0
Record-Route: <sip:50.50.50.210;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes>
Record-Route: <sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes>
Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias
Max-Forwards: 69
From: 987654321 <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>
Contact: "MyUserNAme" <sip:mycustomerid@10.2.1.160:58568;transport=TLS;ob;alias=100.100.100.61~48572~3>
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14320 INVITE
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
Supported: replaces, 100rel, timer, norefersub
Session-Expires: 1800
Min-SE: 90
User-Agent: MicroSIP/3.20.5
Content-Type: application/sdp
Content-Length: 326
P-Asserted-Identity: <sip:987654321@sip.mydomain.com>

v=0
o=- 3841227071 3841227071 IN IP4 50.50.50.215
s=pjmedia
b=AS:84
t=0 0
a=X-nat:0
m=audio 36448 RTP/AVP 8 0 101
c=IN IP4 50.50.50.215
b=TIAS:64000
a=ssrc:2024148033 cname:4f2468fd611910fa
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=sendrecv
a=rtcp:36449

2021/09/21 15:31:11.790589 50.50.50.182:5060 -> 50.50.50.210:5060
SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3;rport=5060
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias
From: 987654321 <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14320 INVITE
Server: myserver
Content-Length: 0

2021/09/21 15:31:11.792809 50.50.50.182:32818 -> 200.200.200.209:5060
INVITE sip:123456789@sip.mydomain.com:5060 SIP/2.0
Record-Route: <sip:50.50.50.182:5080;transport=tcp;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Record-Route: <sip:50.50.50.182;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Record-Route: <sip:50.50.50.210;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes>
Record-Route: <sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes>
Via: SIP/2.0/TCP 50.50.50.182:5080;branch=z9hG4bK37fe.254ecab744d678154779037580c59731.0
Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias
Max-Forwards: 68
From: 987654321 <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>
Contact: "MyUserNAme" <sip:mycustomerid@10.2.1.160:58568;transport=TLS;ob;alias=100.100.100.61~48572~3>
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14320 INVITE
Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS
Supported: replaces, 100rel, timer, norefersub
Session-Expires: 1800
Min-SE: 90
Content-Type: application/sdp
Content-Length: 326
P-Asserted-Identity: <sip:987654321@sip.mydomain.com>

v=0
o=- 3841227071 3841227071 IN IP4 50.50.50.183
s=pjmedia
b=AS:84
t=0 0
a=X-nat:0
m=audio 29308 RTP/AVP 8 0 101
c=IN IP4 50.50.50.183
b=TIAS:64000
a=ssrc:2024148033 cname:4f2468fd611910fa
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=sendrecv
a=rtcp:29309

2021/09/21 15:31:11.813534 200.200.200.209:5060 -> 50.50.50.182:32818
SIP/2.0 100 Trying
Via: SIP/2.0/TCP 50.50.50.182:5080;branch=z9hG4bK37fe.254ecab744d678154779037580c59731.0
Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias
From: 987654321 <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14320 INVITE
Content-Length: 0

2021/09/21 15:31:14.442418 200.200.200.209:5060 -> 50.50.50.182:32818
SIP/2.0 183 Session Progress
Via: SIP/2.0/TCP 50.50.50.182:5080;branch=z9hG4bK37fe.254ecab744d678154779037580c59731.0
Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias
From: 987654321 <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14320 INVITE
Record-Route: <sip:50.50.50.182:5080;transport=tcp;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Record-Route: <sip:50.50.50.182:5060;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Record-Route: <sip:50.50.50.210:5060;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes>
Record-Route: <sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes>
Contact: <sip:123456789@200.200.200.209:5060>
Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS
Require: 100rel
RSeq: 1509
Content-Length: 241
Content-Disposition: session; handling=required
Content-Type: application/sdp

v=0
o=Sonus_UAC 12038 7929 IN IP4 200.200.200.209
s=SIP Media Capabilities
c=IN IP4 200.200.200.212
t=0 0
m=audio 17366 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
a=maxptime:20

2021/09/21 15:31:14.443990 50.50.50.182:5060 -> 50.50.50.210:5060
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK37fe.f05cee0feff15d488a12d3758cece7ae.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj472f07568b924214ada83ddfb0fb12b6;alias
From: 987654321 <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14320 INVITE
Record-Route: <sip:50.50.50.182:5080;transport=tcp;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Record-Route: <sip:50.50.50.182:5060;r2=on;lr=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Record-Route: <sip:50.50.50.210:5060;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes>
Record-Route: <sip:50.50.50.210:5061;transport=tls;r2=on;lr;ftag=73622588a6084d8ba1bca54781e5094d;vsf=AAAAAFpUAgECBwAABnEBB3ZdWEIAQkVFS0BHX2ljZS5ldQ--;vst=AAAAAAAAAAAKCQ8ABAkHCAYKAgdxQFpGbkJCRktDREFYU1AAV0Qw;did=e8e.bb7;nat=yes>
Contact: <sip:123456789@200.200.200.209:5060>
Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS
Require: 100rel
RSeq: 1509
Content-Length: 253
Content-Disposition: session; handling=required
Content-Type: application/sdp

v=0
o=Sonus_UAC 12038 7929 IN IP4 50.50.50.183
s=SIP Media Capabilities
c=IN IP4 50.50.50.183
t=0 0
m=audio 29320 RTP/AVP 8 101
a=maxptime:20
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
a=rtcp:29321

2021/09/21 15:31:14.743211 50.50.50.210:5060 -> 50.50.50.182:5060
PRACK sip:123456789@200.200.200.209:5060 SIP/2.0
Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias
Max-Forwards: 69
From: "MyUserNAme" <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14321 PRACK
Route: <sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Route: <sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
RAck: 1509 14320 INVITE
Content-Length: 0

2021/09/21 15:31:14.786325 50.50.50.182:5060 -> 200.200.200.209:5060
PRACK sip:123456789transport=tcp@200.200.200.209:5060 SIP/2.0
Via: SIP/2.0/UDP 50.50.50.182;branch=z9hG4bK47fe.3406fe45bb75c3e955b6aa67e53aff58.0
Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias
Max-Forwards: 68
From: "MyUserNAme" <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14321 PRACK
RAck: 1509 14320 INVITE
Content-Length: 0

2021/09/21 15:31:15.234429 50.50.50.210:5060 -> 50.50.50.182:5060
PRACK sip:123456789@200.200.200.209:5060 SIP/2.0
Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias
Max-Forwards: 69
From: "MyUserNAme" <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14321 PRACK
Route: <sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Route: <sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
RAck: 1509 14320 INVITE
Content-Length: 0

2021/09/21 15:31:15.280126 50.50.50.182:5060 -> 200.200.200.209:5060
PRACK sip:123456789transport=tcp@200.200.200.209:5060 SIP/2.0
Via: SIP/2.0/UDP 50.50.50.182;branch=z9hG4bK47fe.3406fe45bb75c3e955b6aa67e53aff58.0
Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias
Max-Forwards: 68
From: "MyUserNAme" <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14321 PRACK
RAck: 1509 14320 INVITE
Content-Length: 0

2021/09/21 15:31:16.234279 50.50.50.210:5060 -> 50.50.50.182:5060
PRACK sip:123456789@200.200.200.209:5060 SIP/2.0
Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias
Max-Forwards: 69
From: "MyUserNAme" <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14321 PRACK
Route: <sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Route: <sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
RAck: 1509 14320 INVITE
Content-Length: 0

2021/09/21 15:31:16.280111 50.50.50.182:5060 -> 200.200.200.209:5060
PRACK sip:123456789transport=tcp@200.200.200.209:5060 SIP/2.0
Via: SIP/2.0/UDP 50.50.50.182;branch=z9hG4bK47fe.3406fe45bb75c3e955b6aa67e53aff58.0
Via: SIP/2.0/UDP 50.50.50.210;rport=5060;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias
Max-Forwards: 68
From: "MyUserNAme" <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14321 PRACK
RAck: 1509 14320 INVITE
Content-Length: 0

2021/09/21 15:31:18.234281 50.50.50.210:5060 -> 50.50.50.182:5060
PRACK sip:123456789@200.200.200.209:5060 SIP/2.0
Via: SIP/2.0/UDP 50.50.50.210;branch=z9hG4bK47fe.067d9577e9ab3e30e01745a2cf73b7a4.0;i=baa3
Via: SIP/2.0/TLS 10.2.1.160:58568;received=100.100.100.61;rport=48572;branch=z9hG4bKPj9ab94c339144428bb7ada63b133f2c12;alias
Max-Forwards: 69
From: "MyUserNAme" <sip:987654321@sip.mydomain.com>;tag=73622588a6084d8ba1bca54781e5094d
To: <sip:123456789@sip.mydomain.com>;tag=gK0d8c9073
Call-ID: 846ffb2f076848c5b8edc876fa1c0d9b
CSeq: 14321 PRACK
Route: <sip:50.50.50.182:5060;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
Route: <sip:50.50.50.182:5080;transport=tcp;lr;r2=on;ftag=73622588a6084d8ba1bca54781e5094d;did=e8e.c4d1>
RAck: 1509 14320 INVITE
Content-Length: 0

Any help will be much appreciated.

Kind regards,

Angelo
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