OpenSER                     Asterisk                    PSTN                        UA1
{OpenSER_IP}:5060           {Asterisk_IP}:5060           {PSTN_GW_IP}:5060           {UA_IP}:5061
|                           |                           |                           | <Call><PFrame><Time>
|                           |                           |                           |
|<------------------------------------------------------------------(sdp) INVITE F1<|  1 PF:1   12:36:6.0062
|                           |                           |                           |
|>F2 407 Proxy Authentication Required -------------------------------------------->|  1 PF:2   12:36:6.0062
|                           |                           |                           |
|<-------------------------------------------------------------------------- ACK F3<|  1 PF:3   12:36:6.0085
|                           |                           |                           |
|<------------------------------------------------------------------(sdp) INVITE F4<|  1 PF:4   12:36:6.0105
|                           |                           |                           |
|>F5 100 Giving a try ------------------------------------------------------------->|  1 PF:5   12:36:6.0114
|                           |                           |                           |
|>F6 INVITE (sdp)---------->|                           |                           |  1 PF:6   12:36:6.0631
|                           |                           |                           |
|<----------- Trying 100 F7<|                           |                           |  1 PF:7   12:36:6.0641
|                           |                           |                           |
|<----------(sdp) INVITE F8<|                           |                           |  2 PF:8   12:36:6.0690
|                           |                           |                           |
|>F9 100 Giving a try ----->|                           |                           |  2 PF:9   12:36:6.2605
|                           |                           |                           |
|>F10 INVITE (sdp)------------------------------------->|                           |  2 PF:10  12:36:6.3706
|                           |                           |                           |
|>F11 INVITE (sdp)------------------------------------->|                           |  2 PF:11  12:36:6.7873
|                           |                           |                           |
|>F12 INVITE (sdp)------------------------------------->|                           |  2 PF:12  12:36:7.7871
|                           |                           |                           |
|>F13 408 Request Timeout ->|                           |                           |  2 PF:13  12:36:8.7871
|                           |                           |                           |
|<----------------- ACK F14<|                           |                           |  2 PF:14  12:36:8.7896
|                           |                           |                           |
|<----------------- BYE F15<|                           |                           |  2 PF:15  12:36:8.7912
|                           |                           |                           |
|<- Request Timeout 408 F16<|                           |                           |  1 PF:16  12:36:8.7916
|                           |                           |                           |
|>F17 ACK ----------------->|                           |                           |  1 PF:17  12:36:8.7920
|                           |                           |                           |
|>F18 404 Not here -------->|                           |                           |  2 PF:18  12:36:8.8941
|                           |                           |                           |
|>F19 408 Request Timeout --------------------------------------------------------->|  1 PF:19  12:36:8.9004
|                           |                           |                           |
|<------------------------------------------------------------------------- ACK F20<|  1 PF:20  12:36:8.9036

     SIP MESSAGE 1        {UA_IP}:5061(UA1) -> {OpenSER_IP}:5060(OpenSER)
UDP Frame 1 1/Mar/09 12:36:6.0062 TimeFromPreviousSipFrame=0.0000 TimeFromStart=0.0000
INVITE sip:123@dev-sip.tele500.com SIP/2.0
Via: SIP/2.0/UDP {UA_IP}:5061;rport;branch=z9hG4bKjwnouyml
Max-Forwards: 70
To: <sip:123@dev-sip.tele500.com>
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 707 INVITE
Contact: <sip:10000@{UA_IP}:5061>
Content-Type: application/sdp
Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,PRACK,REFER,NOTIFY,SUBSCRIBE,INFO,MESSAGE
Supported: replaces,norefersub,100rel
User-Agent: Twinkle/1.1
Content-Length: 252

v=0
o=10000 1334618652 2083910151 IN IP4 192.168.7.55
s=-
c=IN IP4 {UA_IP}
t=0 0
m=audio 8002 RTP/AVP 8 0 3 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20

     SIP MESSAGE 2        {OpenSER_IP}:5060(OpenSER) -> {UA_IP}:5061(UA1)
UDP Frame 2 1/Mar/09 12:36:6.0062 TimeFromPreviousSipFrame=0.0001 TimeFromStart=0.0001
SIP/2.0 407 Proxy Authentication Required
Via: SIP/2.0/UDP {UA_IP}:5061;rport=5061;branch=z9hG4bKjwnouyml
To: <sip:123@dev-sip.tele500.com>;tag=bb366ec27b4586a5910eda28cf579ced.4b94
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 707 INVITE
Proxy-Authenticate: Digest realm="dev-sip.tele500.com", nonce="49aa8153000000185dfae87d4a4dc6387cfb9a43f7ef4da8"
Server: SIP Proxy 1
Content-Length: 0


     SIP MESSAGE 3        {UA_IP}:5061(UA1) -> {OpenSER_IP}:5060(OpenSER)
UDP Frame 3 1/Mar/09 12:36:6.0085 TimeFromPreviousSipFrame=0.0023 TimeFromStart=0.0023
ACK sip:123@dev-sip.tele500.com SIP/2.0
Via: SIP/2.0/UDP {UA_IP}:5061;rport;branch=z9hG4bKjwnouyml
Max-Forwards: 70
To: <sip:123@dev-sip.tele500.com>;tag=bb366ec27b4586a5910eda28cf579ced.4b94
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 707 ACK
User-Agent: Twinkle/1.1
Content-Length: 0


     SIP MESSAGE 4        {UA_IP}:5061(UA1) -> {OpenSER_IP}:5060(OpenSER)
UDP Frame 4 1/Mar/09 12:36:6.0105 TimeFromPreviousSipFrame=0.0020 TimeFromStart=0.0044
INVITE sip:123@dev-sip.tele500.com SIP/2.0
Via: SIP/2.0/UDP {UA_IP}:5061;rport;branch=z9hG4bKdjvhchet
Max-Forwards: 70
Proxy-Authorization: Digest username="10000",realm="dev-sip.tele500.com",nonce="49aa8153000000185dfae87d4a4dc6387cfb9a43f7ef4da8",uri="sip:123@dev-sip.tele500.com",response="40cbcf37b54c1361ec064be30eab9b36",algorithm=MD5
To: <sip:123@dev-sip.tele500.com>
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 708 INVITE
Contact: <sip:10000@{UA_IP}:5061>
Content-Type: application/sdp
Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,PRACK,REFER,NOTIFY,SUBSCRIBE,INFO,MESSAGE
Supported: replaces,norefersub,100rel
User-Agent: Twinkle/1.1
Content-Length: 252

v=0
o=10000 1334618652 2083910151 IN IP4 192.168.7.55
s=-
c=IN IP4 {UA_IP}
t=0 0
m=audio 8002 RTP/AVP 8 0 3 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20

     SIP MESSAGE 5        {OpenSER_IP}:5060(OpenSER) -> {UA_IP}:5061(UA1)
UDP Frame 5 1/Mar/09 12:36:6.0114 TimeFromPreviousSipFrame=0.0009 TimeFromStart=0.0053
SIP/2.0 100 Giving a try
Via: SIP/2.0/UDP {UA_IP}:5061;rport=5061;branch=z9hG4bKdjvhchet
To: <sip:123@dev-sip.tele500.com>
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 708 INVITE
Server: SIP Proxy 1
Content-Length: 0


     SIP MESSAGE 6        {OpenSER_IP}:5060(OpenSER) -> {Asterisk_IP}:5060(Asterisk)
UDP Frame 6 1/Mar/09 12:36:6.0631 TimeFromPreviousSipFrame=0.0517 TimeFromStart=0.0570
INVITE sip:123@dev-sip.tele500.com SIP/2.0
Record-Route: <sip:{OpenSER_IP};lr=on;ftag=qjkyu>
Via: SIP/2.0/UDP {OpenSER_IP};branch=z9hG4bK18a8.ca91afd.0
Via: SIP/2.0/UDP {UA_IP}:5061;received={UA_IP};rport=5061;branch=z9hG4bKdjvhchet
Max-Forwards: 69
To: <sip:123@dev-sip.tele500.com>
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 708 INVITE
Contact: <sip:10000@{UA_IP}:5061>
Content-Type: application/sdp
Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,PRACK,REFER,NOTIFY,SUBSCRIBE,INFO,MESSAGE
Supported: replaces,norefersub,100rel
User-Agent: Twinkle/1.1
Content-Length: 252
X-auth: 10000

v=0
o=10000 1334618652 2083910151 IN IP4 192.168.7.55
s=-
c=IN IP4 {UA_IP}
t=0 0
m=audio 8002 RTP/AVP 8 0 3 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20

     SIP MESSAGE 7        {Asterisk_IP}:5060(Asterisk) -> {OpenSER_IP}:5060(OpenSER)
UDP Frame 7 1/Mar/09 12:36:6.0641 TimeFromPreviousSipFrame=0.0009 TimeFromStart=0.0579
SIP/2.0 100 Trying
Via: SIP/2.0/UDP {OpenSER_IP};branch=z9hG4bK18a8.ca91afd.0;received={OpenSER_IP}
Via: SIP/2.0/UDP {UA_IP}:5061;received={UA_IP};rport=5061;branch=z9hG4bKdjvhchet
Record-Route: <sip:{OpenSER_IP};lr=on;ftag=qjkyu>
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
To: <sip:123@dev-sip.tele500.com>
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 708 INVITE
Server: Media GW 1
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces, timer
Contact: <sip:123@{Asterisk_IP}>
Content-Length: 0


     SIP MESSAGE 8        {Asterisk_IP}:5060(Asterisk) -> {OpenSER_IP}:5060(OpenSER)
UDP Frame 8 1/Mar/09 12:36:6.0690 TimeFromPreviousSipFrame=0.0049 TimeFromStart=0.0628
INVITE sip:442088123456@pstn.wima.co.uk SIP/2.0
Via: SIP/2.0/UDP {Asterisk_IP}:5060;branch=z9hG4bK16ab7e1a;rport
Max-Forwards: 70
From: "10000" <sip:10000@{Asterisk_IP}>;tag=as25e845f5
To: <sip:442088123456@pstn.wima.co.uk>
Contact: <sip:10000@{Asterisk_IP}>
Call-ID: 58730b377ad8e3324f7d07501c1b3717@{Asterisk_IP}
CSeq: 102 INVITE
User-Agent: Media GW 1
Date: Sun, 01 Mar 2009 12:36:06 GMT
Session-Expires: 1800
Min-SE: 90
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 300

v=0
o=root 2057975154 2057975154 IN IP4 {Asterisk_IP}
s=Media GW 1
c=IN IP4 {Asterisk_IP}
t=0 0
m=audio 18220 RTP/AVP 8 0 3 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

     SIP MESSAGE 9        {OpenSER_IP}:5060(OpenSER) -> {Asterisk_IP}:5060(Asterisk)
UDP Frame 9 1/Mar/09 12:36:6.2605 TimeFromPreviousSipFrame=0.1915 TimeFromStart=0.2543
SIP/2.0 100 Giving a try
Via: SIP/2.0/UDP {Asterisk_IP}:5060;branch=z9hG4bK16ab7e1a;rport=5060
From: "10000" <sip:10000@{Asterisk_IP}>;tag=as25e845f5
To: <sip:442088123456@pstn.wima.co.uk>
Call-ID: 58730b377ad8e3324f7d07501c1b3717@{Asterisk_IP}
CSeq: 102 INVITE
Server: SIP Proxy 1
Content-Length: 0


     SIP MESSAGE 10       {OpenSER_IP}:5060(OpenSER) -> {PSTN_GW_IP}:5060(PSTN)
UDP Frame 10 1/Mar/09 12:36:6.3706 TimeFromPreviousSipFrame=0.1101 TimeFromStart=0.3644
INVITE sip:442088123456@pstn.wima.co.uk SIP/2.0
Record-Route: <sip:{OpenSER_IP};lr=on;ftag=as25e845f5>
Via: SIP/2.0/UDP {OpenSER_IP};branch=z9hG4bKa051.90c9dba6.0
Via: SIP/2.0/UDP {Asterisk_IP}:5060;received={Asterisk_IP};branch=z9hG4bK16ab7e1a;rport=5060
Max-Forwards: 69
From: "10000" <sip:10000@{Asterisk_IP}>;tag=as25e845f5
To: <sip:442088123456@pstn.wima.co.uk>
Contact: <sip:10000@{Asterisk_IP}>
Call-ID: 58730b377ad8e3324f7d07501c1b3717@{Asterisk_IP}
CSeq: 102 INVITE
User-Agent: Media GW 1
Date: Sun, 01 Mar 2009 12:36:06 GMT
Session-Expires: 1800
Min-SE: 90
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 300

v=0
o=root 2057975154 2057975154 IN IP4 {Asterisk_IP}
s=Media GW 1
c=IN IP4 {Asterisk_IP}
t=0 0
m=audio 18220 RTP/AVP 8 0 3 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

     SIP MESSAGE 11       {OpenSER_IP}:5060(OpenSER) -> {PSTN_GW_IP}:5060(PSTN)
UDP Frame 11 1/Mar/09 12:36:6.7873 TimeFromPreviousSipFrame=0.4167 TimeFromStart=0.7811
INVITE sip:442088123456@pstn.wima.co.uk SIP/2.0
Record-Route: <sip:{OpenSER_IP};lr=on;ftag=as25e845f5>
Via: SIP/2.0/UDP {OpenSER_IP};branch=z9hG4bKa051.90c9dba6.0
Via: SIP/2.0/UDP {Asterisk_IP}:5060;received={Asterisk_IP};branch=z9hG4bK16ab7e1a;rport=5060
Max-Forwards: 69
From: "10000" <sip:10000@{Asterisk_IP}>;tag=as25e845f5
To: <sip:442088123456@pstn.wima.co.uk>
Contact: <sip:10000@{Asterisk_IP}>
Call-ID: 58730b377ad8e3324f7d07501c1b3717@{Asterisk_IP}
CSeq: 102 INVITE
User-Agent: Media GW 1
Date: Sun, 01 Mar 2009 12:36:06 GMT
Session-Expires: 1800
Min-SE: 90
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 300

v=0
o=root 2057975154 2057975154 IN IP4 {Asterisk_IP}
s=Media GW 1
c=IN IP4 {Asterisk_IP}
t=0 0
m=audio 18220 RTP/AVP 8 0 3 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

     SIP MESSAGE 12       {OpenSER_IP}:5060(OpenSER) -> {PSTN_GW_IP}:5060(PSTN)
UDP Frame 12 1/Mar/09 12:36:7.7871 TimeFromPreviousSipFrame=0.9998 TimeFromStart=1.7809
INVITE sip:442088123456@pstn.wima.co.uk SIP/2.0
Record-Route: <sip:{OpenSER_IP};lr=on;ftag=as25e845f5>
Via: SIP/2.0/UDP {OpenSER_IP};branch=z9hG4bKa051.90c9dba6.0
Via: SIP/2.0/UDP {Asterisk_IP}:5060;received={Asterisk_IP};branch=z9hG4bK16ab7e1a;rport=5060
Max-Forwards: 69
From: "10000" <sip:10000@{Asterisk_IP}>;tag=as25e845f5
To: <sip:442088123456@pstn.wima.co.uk>
Contact: <sip:10000@{Asterisk_IP}>
Call-ID: 58730b377ad8e3324f7d07501c1b3717@{Asterisk_IP}
CSeq: 102 INVITE
User-Agent: Media GW 1
Date: Sun, 01 Mar 2009 12:36:06 GMT
Session-Expires: 1800
Min-SE: 90
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 300

v=0
o=root 2057975154 2057975154 IN IP4 {Asterisk_IP}
s=Media GW 1
c=IN IP4 {Asterisk_IP}
t=0 0
m=audio 18220 RTP/AVP 8 0 3 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv

     SIP MESSAGE 13       {OpenSER_IP}:5060(OpenSER) -> {Asterisk_IP}:5060(Asterisk)
UDP Frame 13 1/Mar/09 12:36:8.7871 TimeFromPreviousSipFrame=1.0001 TimeFromStart=2.7810
SIP/2.0 408 Request Timeout
Via: SIP/2.0/UDP {Asterisk_IP}:5060;branch=z9hG4bK16ab7e1a;rport=5060
From: "10000" <sip:10000@{Asterisk_IP}>;tag=as25e845f5
To: <sip:442088123456@pstn.wima.co.uk>;tag=78b11732fd1718be878e22d27662fcac-6cbc
Call-ID: 58730b377ad8e3324f7d07501c1b3717@{Asterisk_IP}
CSeq: 102 INVITE
Server: SIP Proxy 1
Content-Length: 0


     SIP MESSAGE 14       {Asterisk_IP}:5060(Asterisk) -> {OpenSER_IP}:5060(OpenSER)
UDP Frame 14 1/Mar/09 12:36:8.7896 TimeFromPreviousSipFrame=0.0025 TimeFromStart=2.7835
ACK sip:442088123456@pstn.wima.co.uk SIP/2.0
Via: SIP/2.0/UDP {Asterisk_IP}:5060;branch=z9hG4bK16ab7e1a;rport
Max-Forwards: 70
From: "10000" <sip:10000@{Asterisk_IP}>;tag=as25e845f5
To: <sip:442088123456@pstn.wima.co.uk>;tag=78b11732fd1718be878e22d27662fcac-6cbc
Contact: <sip:10000@{Asterisk_IP}>
Call-ID: 58730b377ad8e3324f7d07501c1b3717@{Asterisk_IP}
CSeq: 102 ACK
User-Agent: Media GW 1
Content-Length: 0


     SIP MESSAGE 15       {Asterisk_IP}:5060(Asterisk) -> {OpenSER_IP}:5060(OpenSER)
UDP Frame 15 1/Mar/09 12:36:8.7912 TimeFromPreviousSipFrame=0.0016 TimeFromStart=2.7851
BYE sip:442088123456@pstn.wima.co.uk SIP/2.0
Via: SIP/2.0/UDP {Asterisk_IP}:5060;branch=z9hG4bK04892ce3;rport
Max-Forwards: 70
From: "10000" <sip:10000@{Asterisk_IP}>;tag=as25e845f5
To: <sip:442088123456@pstn.wima.co.uk>;tag=78b11732fd1718be878e22d27662fcac-6cbc
Call-ID: 58730b377ad8e3324f7d07501c1b3717@{Asterisk_IP}
CSeq: 103 BYE
User-Agent: Media GW 1
X-Asterisk-HangupCause: No user responding
X-Asterisk-HangupCauseCode: 18
Content-Length: 0


     SIP MESSAGE 16       {Asterisk_IP}:5060(Asterisk) -> {OpenSER_IP}:5060(OpenSER)
UDP Frame 16 1/Mar/09 12:36:8.7916 TimeFromPreviousSipFrame=0.0004 TimeFromStart=2.7855
SIP/2.0 408 Request Timeout
Via: SIP/2.0/UDP {OpenSER_IP};branch=z9hG4bK18a8.ca91afd.0;received={OpenSER_IP}
Via: SIP/2.0/UDP {UA_IP}:5061;received={UA_IP};rport=5061;branch=z9hG4bKdjvhchet
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
To: <sip:123@dev-sip.tele500.com>;tag=as5cb187d2
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 708 INVITE
Server: Media GW 1
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces, timer
Content-Length: 0


     SIP MESSAGE 17       {OpenSER_IP}:5060(OpenSER) -> {Asterisk_IP}:5060(Asterisk)
UDP Frame 17 1/Mar/09 12:36:8.7920 TimeFromPreviousSipFrame=0.0004 TimeFromStart=2.7858
ACK sip:123@dev-sip.tele500.com SIP/2.0
Via: SIP/2.0/UDP {OpenSER_IP};branch=z9hG4bK18a8.ca91afd.0
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
Call-ID: btomwmxyvjserjv@192.168.7.55
To: <sip:123@dev-sip.tele500.com>;tag=as5cb187d2
CSeq: 708 ACK
Max-Forwards: 70
User-Agent: SIP Proxy 1
Content-Length: 0


     SIP MESSAGE 18       {OpenSER_IP}:5060(OpenSER) -> {Asterisk_IP}:5060(Asterisk)
UDP Frame 18 1/Mar/09 12:36:8.8941 TimeFromPreviousSipFrame=0.1021 TimeFromStart=2.8880
SIP/2.0 404 Not here
Via: SIP/2.0/UDP {Asterisk_IP}:5060;branch=z9hG4bK04892ce3;rport=5060
From: "10000" <sip:10000@{Asterisk_IP}>;tag=as25e845f5
To: <sip:442088123456@pstn.wima.co.uk>;tag=78b11732fd1718be878e22d27662fcac-6cbc
Call-ID: 58730b377ad8e3324f7d07501c1b3717@{Asterisk_IP}
CSeq: 103 BYE
Server: SIP Proxy 1
Content-Length: 0


     SIP MESSAGE 19       {OpenSER_IP}:5060(OpenSER) -> {UA_IP}:5061(UA1)
UDP Frame 19 1/Mar/09 12:36:8.9004 TimeFromPreviousSipFrame=0.0063 TimeFromStart=2.8943
SIP/2.0 408 Request Timeout
Via: SIP/2.0/UDP {UA_IP}:5061;received={UA_IP};rport=5061;branch=z9hG4bKdjvhchet
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
To: <sip:123@dev-sip.tele500.com>;tag=as5cb187d2
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 708 INVITE
Server: Media GW 1
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Supported: replaces, timer
Content-Length: 0


     SIP MESSAGE 20       {UA_IP}:5061(UA1) -> {OpenSER_IP}:5060(OpenSER)
UDP Frame 20 1/Mar/09 12:36:8.9036 TimeFromPreviousSipFrame=0.0032 TimeFromStart=2.8974
ACK sip:123@dev-sip.tele500.com SIP/2.0
Via: SIP/2.0/UDP {UA_IP}:5061;rport;branch=z9hG4bKdjvhchet
Max-Forwards: 70
Proxy-Authorization: Digest username="10000",realm="dev-sip.tele500.com",nonce="49aa8153000000185dfae87d4a4dc6387cfb9a43f7ef4da8",uri="sip:123@dev-sip.tele500.com",response="40cbcf37b54c1361ec064be30eab9b36",algorithm=MD5
To: <sip:123@dev-sip.tele500.com>;tag=as5cb187d2
From: "10000" <sip:10000@dev-sip.tele500.com>;tag=qjkyu
Call-ID: btomwmxyvjserjv@192.168.7.55
CSeq: 708 ACK
User-Agent: Twinkle/1.1
Content-Length: 0