[Freeswitch-users] Call dropping after 32 seconds

Mon Feb 22 09:19:29 MSK 2016

 Hello,

Having issue of call dropping after 32 seconds, here are the details-

x.x.x.174: opensips server
x.x.x.166: freeswitch server
x.x.x.3:     another opensips server which is registered as gateway on
above freeswitch server
x.x.x.6: freeswitch server
x.x.x.47:  server through which the user is registered
I am trying to call from xxxx9 to xxxxxxx29858
xxxxxxx00181 is caller-id name and caller-id number

Call flow is like this:
registered user -> x.x.x.166 (freeswitch server) -> x.x.x.174 (opensips
server) -> x.x.x.3 (Gateway) -> x.x.x.6 (freeswitch server)

Outbound-proxy is set to x.x.x.174 in Gateway configuration.

1) Call is initiated by the user(xxxx9) registered with host x.x.x.174
2) Call hit the freeswitch server x.x.x.166
3) After '180 Ringing' and '183 Session Progress' packet sending-receiving
started between 'x.x.x.174' and 'x.x.x.166' through the gateway x.x.x.3
But after 32 seconds call is dropped,
Within 32 seconds audio is ok from both end so it should not be the RTP
issue.
Here I have attached the file with sip logs, you can observer from the file
that, there are many '200 OK' from x.x.x.174 to x.x.x.166
and at the end, x.x.x.174 sending 'ACK Timeout' to x.x.x.166 and then 'BYE'
from x.x.x.166 to x.x.x.174 and call is dropped.

What is wrong here? Any help would be appreciated here.

Here is the file with sip logs
--
Thanks,
Rutu Patel
<http://www.inextrix.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20160222/5450c6c6/attachment-0001.html 
-------------- next part --------------
U x.x.x.174:5060 -> x.x.x.166:5060
INVITE sip:xxxxxxx29858 at x.x.x.166:5060 SIP/2.0.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=1037646889;did=3dd.18dd4fd7>.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK1bf1.f4e1b863.0.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1606798992;rport=2313.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 70 INVITE.
Contact: <sip:xxxx9 at x.x.x.47:2313>.
Max-Forwards: 30.
User-Agent: Grandstream GXP1400 1.0.6.11.
Privacy: none.
P-Preferred-Identity: <sip:xxxx9 at x.x.x.174>.
Supported: replaces, path, timer.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE.
Content-Type: application/sdp.
Accept: application/sdp, application/dtmf-relay.
Content-Length:   285.
X-AUTH-IP: x.x.x.47.
.
v=0.
o=xxxx9 8001 8000 IN IP4 x.x.x.47.
s=SIP Call.
c=IN IP4 x.x.x.47.
t=0 0.
m=audio 5008 RTP/AVP 0 8 18 101.
a=sendrecv.
a=rtpmap:0 PCMU/8000.
a=ptime:20.
a=rtpmap:8 PCMA/8000.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.

U x.x.x.166:5060 -> x.x.x.174:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK1bf1.f4e1b863.0.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1606798992;rport=2313.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=1037646889;did=3dd.18dd4fd7>.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 70 INVITE.
User-Agent: M01.
Content-Length: 0.
.

U x.x.x.166:5060 -> x.x.x.174:5060
SIP/2.0 407 Proxy Authentication Required.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK1bf1.f4e1b863.0.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1606798992;rport=2313.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>;tag=reUey9taa7r0N.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 70 INVITE.
User-Agent: M01.
Accept: application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Proxy-Authenticate: Digest realm="x.x.x.174", nonce="fd658a68-d16e-11e5-b0fa-b321f35ec85c", algorithm=MD5, qop="auth".
Content-Length: 0.
.

U x.x.x.174:5060 -> x.x.x.166:5060
ACK sip:xxxxxxx29858 at x.x.x.166:5060 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK1bf1.f4e1b863.0.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
To: <sip:xxxxxxx29858 at x.x.x.174>;tag=reUey9taa7r0N.
CSeq: 70 ACK.
Max-Forwards: 70.
Content-Length: 0.
.

U x.x.x.174:5060 -> x.x.x.166:5060
INVITE sip:xxxxxxx29858 at x.x.x.166:5060 SIP/2.0.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=1037646889;did=3dd.28dd4fd7>.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK2bf1.30ee31f1.0.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1418332271;rport=2313.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 71 INVITE.
Contact: <sip:xxxx9 at x.x.x.47:2313>.
Proxy-Authorization: Digest username="xxxx9", realm="x.x.x.174", nonce="fd658a68-d16e-11e5-b0fa-b321f35ec85c", uri="sip:xxxxxxx29858 at x.x.x.174", response="97445fab50fed9e6930856844ec41daf", algorithm=MD5, cnonce="05356127", qop=auth, nc=0000000b.
Max-Forwards: 30.
User-Agent: Grandstream GXP1400 1.0.6.11.
Privacy: none.
P-Preferred-Identity: <sip:xxxx9 at x.x.x.174>.
Supported: replaces, path, timer.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE.
Content-Type: application/sdp.
Accept: application/sdp, application/dtmf-relay.
Content-Length:   285.
X-AUTH-IP: x.x.x.47.
.
v=0.
o=xxxx9 8001 8000 IN IP4 x.x.x.47.
s=SIP Call.
c=IN IP4 x.x.x.47.
t=0 0.
m=audio 5008 RTP/AVP 0 8 18 101.
a=sendrecv.
a=rtpmap:0 PCMU/8000.
a=ptime:20.
a=rtpmap:8 PCMA/8000.
a=rtpmap:18 G729/8000.
a=fmtp:18 annexb=no.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.

U x.x.x.166:5060 -> x.x.x.174:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK2bf1.30ee31f1.0.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1418332271;rport=2313.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=1037646889;did=3dd.28dd4fd7>.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 71 INVITE.
User-Agent: M01.
Content-Length: 0.
.

U x.x.x.166:5060 -> x.x.x.174:5060
INVITE sip:xxxxxxx29858 at x.x.x.3 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.166;rport;branch=z9hG4bK789FQF04S4yte.
Max-Forwards: 29.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:gw+test_gateway at x.x.x.166:5060;transport=udp;gw=test_gateway>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Type: application/sdp.
Content-Disposition: session.
Content-Length: 324.
X-AUTH-IP: x.x.x.47.
Remote-Party-ID: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;party=calling;screen=yes;privacy=off.
.
v=0.
o=FreeSWITCH 1455243062 1455243063 IN IP4 x.x.x.166.
s=FreeSWITCH.
c=IN IP4 x.x.x.166.
t=0 0.
m=audio 27972 RTP/AVP 8 0 9 3 18 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:0 PCMU/8000.
a=rtpmap:9 G722/8000.
a=rtpmap:3 GSM/8000.
a=rtpmap:18 G729/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 100 Giving a try.
Via: SIP/2.0/UDP x.x.x.166;received=x.x.x.166;rport=5060;branch=z9hG4bK789FQF04S4yte.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Content-Length: 0.
Warning: 392 x.x.x.174:5060 "Noisy feedback tells:  pid=36603 req_src_ip=x.x.x.166 req_src_port=5060 in_uri=sip:xxxxxxx29858 at x.x.x.3 out_uri=sip:xxxxxxx29858 at x.x.x.3 via_cnt==1".
.

U x.x.x.3:5060 -> x.x.x.166:5060
INVITE sip:xxxxxxx29858 at x.x.x.166 SIP/2.0.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=9pp9134ya08pe;did=3b1.30cc623>.
Via: SIP/2.0/UDP x.x.x.3:5060;branch=z9hG4bK93e3.c07e36f3.0.
Max-Forwards: 25.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.6>;tag=9pp9134ya08pe.
To: <sip:xxxxxxx29858 at x.x.x.166>.
Call-ID: 0db3670b-4c12-1234-51b7-021923026132.
CSeq: 87299500 INVITE.
Contact: <sip:gw+SBC_gateway at x.x.x.6:5060;transport=udp;gw=SBC_gateway>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
X-AUTH-IP: x.x.x.174.
P-Accountcode: <null>.
X-FS-Support: update_display,send_info.
Remote-Party-ID: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.6>;party=calling;screen=yes;privacy=off.
Content-Type: application/sdp.
Content-Length: 261.
.
v=0.
o=FreeSWITCH 1455243574 1455243575 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 27554 RTP/AVP 8 0 9 3 98 18 101 13.
a=rtpmap:98 G7221/16000.
a=fmtp:98 bitrate=32000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=ptime:20.

U x.x.x.166:5060 -> x.x.x.3:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP x.x.x.3:5060;branch=z9hG4bK93e3.c07e36f3.0.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=9pp9134ya08pe;did=3b1.30cc623>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.6>;tag=9pp9134ya08pe.
To: <sip:xxxxxxx29858 at x.x.x.166>.
Call-ID: 0db3670b-4c12-1234-51b7-021923026132.
CSeq: 87299500 INVITE.
User-Agent: M01.
Content-Length: 0.
.

U x.x.x.166:5060 -> x.x.x.3:5060
SIP/2.0 603 Decline.
Via: SIP/2.0/UDP x.x.x.3:5060;branch=z9hG4bK93e3.c07e36f3.0.
Max-Forwards: 25.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.6>;tag=9pp9134ya08pe.
To: <sip:xxxxxxx29858 at x.x.x.166>;tag=vj0H5NyryajBm.
Call-ID: 0db3670b-4c12-1234-51b7-021923026132.
CSeq: 87299500 INVITE.
User-Agent: M01.
Accept: application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Reason: Q.850;cause=21;text="CALL_REJECTED".
Content-Length: 0.
.

U x.x.x.3:5060 -> x.x.x.166:5060
ACK sip:xxxxxxx29858 at x.x.x.166 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.3:5060;branch=z9hG4bK93e3.c07e36f3.0.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.6>;tag=9pp9134ya08pe.
Call-ID: 0db3670b-4c12-1234-51b7-021923026132.
To: <sip:xxxxxxx29858 at x.x.x.166>;tag=vj0H5NyryajBm.
CSeq: 87299500 ACK.
Max-Forwards: 70.
Content-Length: 0.
.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 183 Session Progress.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK789FQF04S4yte.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.3:5060;transport=udp>.
User-Agent: M01.
Accept: application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "xxxxxxx29858" <sip:xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.166:5060 -> x.x.x.174:5060
SIP/2.0 183 Session Progress.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK2bf1.30ee31f1.0.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1418332271;rport=2313.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=1037646889;did=3dd.28dd4fd7>.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>;tag=t0D01ZvH4r55c.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 71 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.166:5060;transport=udp>.
User-Agent: M01.
Accept: application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Type: application/sdp.
Content-Disposition: session.
Content-Length: 224.
.
v=0.
o=FreeSWITCH 1455243571 1455243572 IN IP4 x.x.x.166.
s=FreeSWITCH.
c=IN IP4 x.x.x.166.
t=0 0.
m=audio 27468 RTP/AVP 8 101.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK789FQF04S4yte.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.3:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.166:5060 -> x.x.x.174:5060
ACK sip:xxxxxxx29858 at x.x.x.3:5060;transport=udp SIP/2.0.
Via: SIP/2.0/UDP x.x.x.166;rport;branch=z9hG4bK8H38raH8pDNDa.
Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Max-Forwards: 70.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 ACK.
Contact: <sip:gw+test_gateway at x.x.x.166:5060;transport=udp;gw=test_gateway>.
Content-Length: 0.
.

U x.x.x.166:5060 -> x.x.x.174:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK2bf1.30ee31f1.0.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1418332271;rport=2313.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=1037646889;did=3dd.28dd4fd7>.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>;tag=t0D01ZvH4r55c.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 71 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.166:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Type: application/sdp.
Content-Disposition: session.
Content-Length: 224.
.
v=0.
o=FreeSWITCH 1455243571 1455243572 IN IP4 x.x.x.166.
s=FreeSWITCH.
c=IN IP4 x.x.x.166.
t=0 0.
m=audio 27468 RTP/AVP 8 101.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.3:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.166:5060 -> x.x.x.174:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK2bf1.30ee31f1.0.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1418332271;rport=2313.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=1037646889;did=3dd.28dd4fd7>.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>;tag=t0D01ZvH4r55c.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 71 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.166:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Type: application/sdp.
Content-Disposition: session.
Content-Length: 224.
.
v=0.
o=FreeSWITCH 1455243571 1455243572 IN IP4 x.x.x.166.
s=FreeSWITCH.
c=IN IP4 x.x.x.166.
t=0 0.
m=audio 27468 RTP/AVP 8 101.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
ACK sip:xxxxxxx29858 at x.x.x.166:5060;transport=udp SIP/2.0.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK2bf1.30ee31f1.2.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1857959530;rport=2313.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>;tag=t0D01ZvH4r55c.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 71 ACK.
Contact: <sip:xxxx9 at x.x.x.47:2313>.
Proxy-Authorization: Digest username="xxxx9", realm="x.x.x.174", nonce="fd658a68-d16e-11e5-b0fa-b321f35ec85c", uri="sip:xxxxxxx29858 at x.x.x.174", response="97445fab50fed9e6930856844ec41daf", algorithm=MD5, cnonce="05356127", qop=auth, nc=0000000b.
Max-Forwards: 30.
Supported: replaces, path, timer.
User-Agent: Grandstream GXP1400 1.0.6.11.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE.
Content-Length: 0.
P-hint: rr-enforced.
X-AUTH-IP: x.x.x.47.
.

U x.x.x.174:5060 -> x.x.x.166:5060
ACK sip:xxxxxxx29858 at x.x.x.166:5060;transport=udp SIP/2.0.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bK2bf1.30ee31f1.2.
Via: SIP/2.0/UDP x.x.x.47:2313;received=x.x.x.47;branch=z9hG4bK1857959530;rport=2313.
From: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
To: <sip:xxxxxxx29858 at x.x.x.174>;tag=t0D01ZvH4r55c.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 71 ACK.
Contact: <sip:xxxx9 at x.x.x.47:2313>.
Proxy-Authorization: Digest username="xxxx9", realm="x.x.x.174", nonce="fd658a68-d16e-11e5-b0fa-b321f35ec85c", uri="sip:xxxxxxx29858 at x.x.x.174", response="97445fab50fed9e6930856844ec41daf", algorithm=MD5, cnonce="05356127", qop=auth, nc=0000000b.
Max-Forwards: 30.
Supported: replaces, path, timer.
User-Agent: Grandstream GXP1400 1.0.6.11.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE.
Content-Length: 0.
P-hint: rr-enforced.
X-AUTH-IP: x.x.x.47.
.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.3:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.3:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.6:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.6:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.6:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.6:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.6:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.6:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;rport=5060;received=x.x.x.166;branch=z9hG4bK8H38raH8pDNDa.
Record-Route: <sip:x.x.x.3:5060;lr;ftag=U96r3tDN11Urr;did=58e.0e323136>.
Record-Route: <sip:x.x.x.174:5060;lr;ftag=U96r3tDN11Urr;did=58e.ed4c9095>.
From: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
To: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299453 INVITE.
Contact: <sip:xxxxxxx29858 at x.x.x.6:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Allow-Events: talk, hold, conference, refer.
Content-Disposition: session.
Remote-Party-ID: "Outbound Call" <sip:+xxxxxxx29858 at x.x.x.3>;party=calling;privacy=off;screen=no.
Content-Type: application/sdp.
Content-Length: 242.
.
v=0.
o=FreeSWITCH 1455252976 1455252977 IN IP4 x.x.x.6.
s=FreeSWITCH.
c=IN IP4 x.x.x.6.
t=0 0.
m=audio 18154 RTP/AVP 8 101 13.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=rtpmap:13 CN/8000.
a=ptime:20.

U x.x.x.174:5060 -> x.x.x.166:5060
BYE sip:gw+test_gateway at x.x.x.166:5060;transport=udp;gw=test_gateway SIP/2.0.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bKb4be.671066d2.0.
Via: SIP/2.0/UDP x.x.x.3:5060;branch=z9hG4bKb4be.fba2e636.0.
Max-Forwards: 29.
From: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
To: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299520 BYE.
Contact: <sip:xxxxxxx29858 at x.x.x.6:5060;transport=udp>.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Reason: SIP;cause=408;text="ACK Timeout".
P-hint: rr-enforced.
Content-Length: 0.
P-hint: rr-enforced.
X-AUTH-IP: x.x.x.3.
.

U x.x.x.166:5060 -> x.x.x.174:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.174:5060;branch=z9hG4bKb4be.671066d2.0.
Via: SIP/2.0/UDP x.x.x.3:5060;branch=z9hG4bKb4be.fba2e636.0.
From: <sip:xxxxxxx29858 at x.x.x.3>;tag=tFUN7D89Nttyg.
To: "xxxxxxx00181" <sip:xxxxxxx00181 at x.x.x.166>;tag=U96r3tDN11Urr.
Call-ID: d5625619-4c11-1234-0fb6-40a8f0282f84.
CSeq: 87299520 BYE.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Content-Length: 0.
.

U x.x.x.166:5060 -> x.x.x.174:5060
BYE sip:xxxx9 at x.x.x.47:2313 SIP/2.0.
Via: SIP/2.0/UDP x.x.x.166;rport;branch=z9hG4bK9tv1t51BmpB0N.
Route: <sip:x.x.x.174:5060;lr;ftag=1037646889;did=3dd.28dd4fd7>.
Max-Forwards: 70.
From: <sip:xxxxxxx29858 at x.x.x.174>;tag=t0D01ZvH4r55c.
To: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 87299474 BYE.
User-Agent: M01.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY.
Supported: path, replaces.
Reason: SIP;cause=408;text="ACK Timeout".
Content-Length: 0.
P-hint: rr-enforced.
X-AUTH-IP: x.x.x.3.
.

U x.x.x.174:5060 -> x.x.x.166:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP x.x.x.166;received=x.x.x.166;rport=5060;branch=z9hG4bK9tv1t51BmpB0N.
From: <sip:xxxxxxx29858 at x.x.x.174>;tag=t0D01ZvH4r55c.
To: <sip:xxxx9 at x.x.x.174>;tag=1037646889.
Call-ID: 1770373286-5062-8 at BJC.BGI.B.BFJ.
CSeq: 87299474 BYE.
Contact: <sip:xxxx9 at x.x.x.47:2313>.
Supported: replaces, path, timer.
User-Agent: Grandstream GXP1400 1.0.6.11.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE, MESSAGE.
Content-Length: 0.
.