U 192.168.253.252:5090 -> 192.168.253.250:5060
INVITE sip:581@192.168.253.252:40274 SIP/2.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
CSeq: 20 INVITE.
To: "581" <sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052" <sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO.
User-Agent: X-Lite release 1011s stamp 41150.
Max-Forwards: 70.
Contact: <sip:172.26.10.46:5090;transport=udp>.
Route: <sip:6052@192.168.253.250;ftag=da34ab7a;lr=on;nat=yes>.
Content-Length: 0.
.


U 192.168.253.250:5060 -> 192.168.253.252:5090
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 172.26.10.46:5090;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558;rport=5090;received=192.168.253.252.
CSeq: 20 INVITE.
To: "581" <sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052" <sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
Server: Sip EXpress router (0.9.6 (i386/linux)).
Content-Length: 0.
Warning: 392 192.168.253.250:5060 "Noisy feedback tells:  pid=1818 req_src_ip=192.168.253.252 req_src_port=5090 in_uri=sip:581@192.168.253.252:40274 out_uri=sip:581@192.168.253.252:40274 via_cnt==1".
.


U 192.168.253.250:5060 -> 192.168.253.252:40274
INVITE sip:581@192.168.253.252:40274 SIP/2.0.
Record-Route: <sip:581@192.168.253.250;nat=yes;ftag=176255675;lr=on>.
Via: SIP/2.0/UDP 192.168.253.250;branch=z9hG4bKfb8a.c1506c97.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
CSeq: 20 INVITE.
To: "581" <sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052" <sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO.
User-Agent: X-Lite release 1011s stamp 41150.
Max-Forwards: 16.
Contact: <sip:192.168.253.252:5090;transport=udp>.
Content-Length: 0.
.


U 192.168.253.252:40274 -> 192.168.253.250:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 192.168.253.250;branch=z9hG4bKfb8a.c1506c97.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
Record-Route: <sip:581@192.168.253.250;lr;nat=yes;ftag=176255675>.
Contact: <sip:581@192.168.253.252:40274>.
To: "581"<sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052"<sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
CSeq: 20 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Content-Type: application/sdp.
User-Agent: X-Lite release 1011s stamp 41150.
Content-Length: 210.
.
v=0.
o=- 1 3 IN IP4 172.26.10.46.
s=CounterPath X-Lite 3.0.
c=IN IP4 172.26.10.46.
t=0 0.
m=audio 4128 RTP/AVP 0 8 97 101.
a=fmtp:101 0-15.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=sendrecv.


U 192.168.253.252:40274 -> 192.168.253.250:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 192.168.253.250;branch=z9hG4bKfb8a.c1506c97.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
Record-Route: <sip:581@192.168.253.250;lr;nat=yes;ftag=176255675>.
Contact: <sip:581@192.168.253.252:40274>.
To: "581"<sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052"<sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
CSeq: 20 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Content-Type: application/sdp.
User-Agent: X-Lite release 1011s stamp 41150.
Content-Length: 210.
.
v=0.
o=- 1 3 IN IP4 172.26.10.46.
s=CounterPath X-Lite 3.0.
c=IN IP4 172.26.10.46.
t=0 0.
m=audio 4128 RTP/AVP 0 8 97 101.
a=fmtp:101 0-15.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=sendrecv.


U 192.168.253.250:5060 -> 192.168.253.252:5090
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
Record-Route: <sip:581@192.168.253.250;lr;nat=yes;ftag=176255675>.
Contact: <sip:581@192.168.253.252:40274>.
To: "581"<sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052"<sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
CSeq: 20 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Content-Type: application/sdp.
User-Agent: X-Lite release 1011s stamp 41150.
Content-Length: 214.
.
v=0.
o=- 1 3 IN IP4 172.26.10.46.
s=CounterPath X-Lite 3.0.
c=IN IP4 192.168.253.250.
t=0 0.
m=audio 60102 RTP/AVP 0 8 97 101.
a=fmtp:101 0-15.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=sendrecv.


U 192.168.253.250:5060 -> 192.168.253.252:5090
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
Record-Route: <sip:581@192.168.253.250;lr;nat=yes;ftag=176255675>.
Contact: <sip:581@192.168.253.252:40274>.
To: "581"<sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052"<sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
CSeq: 20 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Content-Type: application/sdp.
User-Agent: X-Lite release 1011s stamp 41150.
Content-Length: 214.
.
v=0.
o=- 1 3 IN IP4 172.26.10.46.
s=CounterPath X-Lite 3.0.
c=IN IP4 192.168.253.250.
t=0 0.
m=audio 60102 RTP/AVP 0 8 97 101.
a=fmtp:101 0-15.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=sendrecv.


U 192.168.253.252:5090 -> 192.168.253.250:5060
ACK sip:581@192.168.253.252:40274 SIP/2.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;branch=z9hG4bK1ffac5a2d9e8a9c3ae574cd7d6c9e805.
CSeq: 20 ACK.
To: "581" <sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052" <sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO.
User-Agent: X-Lite release 1011s stamp 41150.
Max-Forwards: 70.
Route: <sip:6052@192.168.253.250;ftag=da34ab7a;lr=on;nat=yes>.
Content-Type: application/sdp.
Content-Length: 264.
.
v=0.
o=root 14771 14771 IN IP4 172.26.1.27.
s=session.
c=IN IP4 172.26.1.27.
t=0 0.
m=audio 16862 RTP/AVP 0 8 97 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:8 PCMA/8000.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=silenceSupp:off - - - -.


U 192.168.253.252:40274 -> 192.168.253.250:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 192.168.253.250;branch=z9hG4bKfb8a.c1506c97.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
Record-Route: <sip:581@192.168.253.250;lr;nat=yes;ftag=176255675>.
Contact: <sip:581@192.168.253.252:40274>.
To: "581"<sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052"<sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
CSeq: 20 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Content-Type: application/sdp.
User-Agent: X-Lite release 1011s stamp 41150.
Content-Length: 210.
.
v=0.
o=- 1 3 IN IP4 172.26.10.46.
s=CounterPath X-Lite 3.0.
c=IN IP4 172.26.10.46.
t=0 0.
m=audio 4128 RTP/AVP 0 8 97 101.
a=fmtp:101 0-15.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=sendrecv.


U 192.168.253.252:40274 -> 192.168.253.250:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 192.168.253.250;branch=z9hG4bKfb8a.c1506c97.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
Record-Route: <sip:581@192.168.253.250;lr;nat=yes;ftag=176255675>.
Contact: <sip:581@192.168.253.252:40274>.
To: "581"<sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052"<sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
CSeq: 20 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Content-Type: application/sdp.
User-Agent: X-Lite release 1011s stamp 41150.
Content-Length: 210.
.
v=0.
o=- 1 3 IN IP4 172.26.10.46.
s=CounterPath X-Lite 3.0.
c=IN IP4 172.26.10.46.
t=0 0.
m=audio 4128 RTP/AVP 0 8 97 101.
a=fmtp:101 0-15.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=sendrecv.


U 192.168.253.252:5090 -> 192.168.253.250:5060
INVITE sip:581@192.168.253.252:40274 SIP/2.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;branch=z9hG4bKa37f5851695c1aee8d004e79de081cf2.
CSeq: 21 INVITE.
To: "581" <sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052" <sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO.
User-Agent: X-Lite release 1011s stamp 41150.
Max-Forwards: 70.
Contact: <sip:172.26.10.46:5090;transport=udp>.
Route: <sip:6052@192.168.253.250;ftag=da34ab7a;lr=on;nat=yes>.
Content-Length: 0.
.


U 192.168.253.250:5060 -> 192.168.253.252:5090
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 172.26.10.46:5090;branch=z9hG4bKa37f5851695c1aee8d004e79de081cf2;rport=5090;received=192.168.253.252.
CSeq: 21 INVITE.
To: "581" <sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052" <sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
Server: Sip EXpress router (0.9.6 (i386/linux)).
Content-Length: 0.
Warning: 392 192.168.253.250:5060 "Noisy feedback tells:  pid=1816 req_src_ip=192.168.253.252 req_src_port=5090 in_uri=sip:581@192.168.253.252:40274 out_uri=sip:581@192.168.253.252:40274 via_cnt==1".
.


U 192.168.253.250:5060 -> 192.168.253.252:40274
INVITE sip:581@192.168.253.252:40274 SIP/2.0.
Record-Route: <sip:581@192.168.253.250;nat=yes;ftag=176255675;lr=on>.
Via: SIP/2.0/UDP 192.168.253.250;branch=z9hG4bK0c8a.57c514b1.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bKa37f5851695c1aee8d004e79de081cf2.
CSeq: 21 INVITE.
To: "581" <sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052" <sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO.
User-Agent: X-Lite release 1011s stamp 41150.
Max-Forwards: 16.
Contact: <sip:192.168.253.252:5090;transport=udp>.
Content-Length: 0.
.


U 192.168.253.250:5060 -> 192.168.253.252:40274
ACK sip:581@192.168.253.252:40274 SIP/2.0.
Record-Route: <sip:581@192.168.253.250;nat=yes;ftag=176255675;lr=on>.
Via: SIP/2.0/UDP 192.168.253.250;branch=0.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK1ffac5a2d9e8a9c3ae574cd7d6c9e805.
CSeq: 20 ACK.
To: "581" <sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052" <sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO.
User-Agent: X-Lite release 1011s stamp 41150.
Max-Forwards: 16.
Content-Type: application/sdp.
Content-Length: 268.
.
v=0.
o=root 14771 14771 IN IP4 172.26.1.27.
s=session.
c=IN IP4 192.168.253.250.
t=0 0.
m=audio 60102 RTP/AVP 0 8 97 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:8 PCMA/8000.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=silenceSupp:off - - - -.


U 192.168.253.250:5060 -> 192.168.253.252:5090
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
Record-Route: <sip:581@192.168.253.250;lr;nat=yes;ftag=176255675>.
Contact: <sip:581@192.168.253.252:40274>.
To: "581"<sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052"<sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
CSeq: 20 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Content-Type: application/sdp.
User-Agent: X-Lite release 1011s stamp 41150.
Content-Length: 214.
.
v=0.
o=- 1 3 IN IP4 172.26.10.46.
s=CounterPath X-Lite 3.0.
c=IN IP4 192.168.253.250.
t=0 0.
m=audio 60102 RTP/AVP 0 8 97 101.
a=fmtp:101 0-15.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=sendrecv.


U 192.168.253.250:5060 -> 192.168.253.252:5090
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bK951d88acf3c3a6a4b78b460357b34558.
Record-Route: <sip:581@192.168.253.250;lr;nat=yes;ftag=176255675>.
Contact: <sip:581@192.168.253.252:40274>.
To: "581"<sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052"<sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
CSeq: 20 INVITE.
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO.
Content-Type: application/sdp.
User-Agent: X-Lite release 1011s stamp 41150.
Content-Length: 214.
.
v=0.
o=- 1 3 IN IP4 172.26.10.46.
s=CounterPath X-Lite 3.0.
c=IN IP4 192.168.253.250.
t=0 0.
m=audio 60102 RTP/AVP 0 8 97 101.
a=fmtp:101 0-15.
a=rtpmap:97 iLBC/8000.
a=rtpmap:101 telephone-event/8000.
a=sendrecv.


U 192.168.253.252:40274 -> 192.168.253.250:5060
SIP/2.0 491 Request Pending.
Via: SIP/2.0/UDP 192.168.253.250;branch=z9hG4bK0c8a.57c514b1.0.
Via: SIP/2.0/UDP 172.26.10.46:5090;rport=5090;received=192.168.253.252;branch=z9hG4bKa37f5851695c1aee8d004e79de081cf2.
To: "581"<sip:581@192.168.253.250>;tag=da34ab7a.
From: "6052"<sip:6052@192.168.253.250>;tag=176255675.
Call-ID: OTE2MTdhMjQzM2E4YjExMGYyNTRjZTA0MWQ3NWQ1YjU..
CSeq: 21 INVITE.
User-Agent: X-Lite release 1011s stamp 41150.
Content-Length: 0.
.