[SR-Users] tls nat
hiro
23hiro at gmail.com
Thu Sep 12 14:01:41 CEST 2013
ok, managed to find a better way to export decrypted sip from
wireshark. An example log is in the attachment.
On 9/9/13, Daniel-Constantin Mierla <miconda at gmail.com> wrote:
> Hello,
>
> I doubt Kamailio adds any sdp body. Can you post here the ngrep with all
> the SIP signaling from the first INVITE?
>
> Cheers,
> Daniel
>
>
> On Sun, Sep 8, 2013 at 11:00 PM, hiro <23hiro at gmail.com> wrote:
>
>> Ok, I compiled the latest rtpproxy.so, the problem persists: the
>> interesting facts are: the callee only answers with sdp port once, in
>> the session progress message. the 200 ok does not have sdp body, but
>> kamailio inserts sdp into it.
>>
>> With the new rtpproxy.so kamailio responds to the session progress by
>> sending a prack to the callee itself followed by a 200 ok to the
>> caller that includes sdp but has CSeq: 893961 PRACK which never got
>> requested by the caller though.
>>
>> On 9/4/13, hiro <23hiro at gmail.com> wrote:
>> > For this installation I used the .deb from
>> http://deb.kamailio.org/kamailio
>> > Sorry I forgot to include this critical information.
>> > Is 4.0.3 new enough? Else I can also compile tip, or head or whatever
>> > it's called ;)
>> >
>> > kamailio -V
>> > version: kamailio 4.0.3 (x86_64/linux)
>> > flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS,
>> > USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM,
>> > SHM_MMAP, PKG_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT,
>> > USE_DNS_CACHE, USE_DNS_FAILOVER,
>> > USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
>> >
>> >
>> > ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
>> > MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 4MB
>> > poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
>> > id: unknown
>> > compiled on 17:01:35 Aug 19 2013 with gcc 4.7.2
>> >
>> >
>> > On 9/4/13, Daniel-Constantin Mierla <miconda at gmail.com> wrote:
>> >> Hello,
>> >>
>> >> On 8/29/13 10:22 PM, hiro wrote:
>> >>> After many failures because of broken libraries I managed to decrypt
>> >>> my problematic TLS sessions providing the private key of kamailio to
>> >>> wireshark.
>> >>>
>> >>> With TLS+SRTP enabled my nokia phones send session progress and
>> >>> pracks
>> >>> with rtp port. This breaks NAT/rtpproxy in kamailio, which replaces
>> >>> the rtpproxy port in session progress, but then forgets about it for
>> >>> the 200 OK.
>> >>>
>> >>> Attached is a tree overview and the conversations of each phone with
>> >>> kamailio.
>> >> can you try with latest branch 4.0? The issue was probably due to
>> >> rtpproxy_manage() function not taking in consideration PRACKs with
>> >> sdp.
>> >> Alternative is to use rtpproxy_offer()/rtpproxy_answer() to control
>> >> rtpproxy application.
>> >>
>> >> Cheers,
>> >> Daniel
>> >>
>> >> --
>> >> Daniel-Constantin Mierla - http://www.asipto.com
>> >> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>> >> Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13,
>> >> 2013
>> >> - more details about Kamailio trainings at http://www.asipto.com -
>> >>
>> >>
>> >> _______________________________________________
>> >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
>> >> list
>> >> sr-users at lists.sip-router.org
>> >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>> >>
>> >
>>
>
>
>
> --
> Daniel-Constantin Mierla
> http://www.asipto.com
>
-------------- next part --------------
No. Time Source Destination Protocol Length Info
14 0.306061000 dyn-ip kamailio-ip SIP 487 Request: REGISTER sips:kamailio-domain:5061
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: sent-lm (2316), Dst Port: sip-tls (5061), Seq: 401, Ack: 1695, Len: 421
Request-Line: REGISTER sips:kamailio-domain:5061 SIP/2.0
Message Header
Via: SIP/2.0/TLS 192.168.1.54:5061;branch=z9hG4bKm7cvaarklhhc62m507aqjaq;rport
From: <sips:8 at kamailio-domain>;tag=8ddfaat86thc6l7u07aq
To: <sips:8 at kamailio-domain>
Contact: <sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061>;expires=3600
CSeq: 10516286 REGISTER
Call-ID: j47RaY3qoIdIjw7lGk2bMAiNynk0MG
User-Agent: Nokia RM-530 091.004
Max-Forwards: 70
Content-Length: 0
No. Time Source Destination Protocol Length Info
15 0.307482000 kamailio-ip dyn-ip SIP 551 Status: 401 Unauthorized (0 bindings)
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: sent-lm (2316), Seq: 1695, Ack: 822, Len: 485
Status-Line: SIP/2.0 401 Unauthorized
Message Header
Via: SIP/2.0/TLS 192.168.1.54:5061;branch=z9hG4bKm7cvaarklhhc62m507aqjaq;rport=2316;received=dyn-ip
From: <sips:8 at kamailio-domain>;tag=8ddfaat86thc6l7u07aq
To: <sips:8 at kamailio-domain>;tag=b27e1a1d33761e85846fc98f5f3a7e58.ce61
CSeq: 10516286 REGISTER
Call-ID: j47RaY3qoIdIjw7lGk2bMAiNynk0MG
WWW-Authxxx
Server: kamailio (4.0.3 (x86_64/linux))
Content-Length: 0
No. Time Source Destination Protocol Length Info
16 0.343777000 dyn-ip kamailio-ip SIP 663 Request: REGISTER sips:kamailio-domain:5061
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: sent-lm (2316), Dst Port: sip-tls (5061), Seq: 822, Ack: 2180, Len: 597
Request-Line: REGISTER sips:kamailio-domain:5061 SIP/2.0
Message Header
Via: SIP/2.0/TLS 192.168.1.54:5061;branch=z9hG4bKhrna1od0s5astikguklhogb;rport
From: <sips:8 at kamailio-domain>;tag=8ddfaat86thc6l7u07aq
To: <sips:8 at kamailio-domain>
Contact: <sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061>;expires=3600
CSeq: 10516287 REGISTER
Call-ID: j47RaY3qoIdIjw7lGk2bMAiNynk0MG
User-Agent: Nokia RM-530 091.004
Max-Forwards: 70
Authorizationxxx
Content-Length: 0
No. Time Source Destination Protocol Length Info
17 0.344263000 kamailio-ip dyn-ip SIP 583 Status: 200 OK (1 bindings)
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: sent-lm (2316), Seq: 2180, Ack: 1419, Len: 517
Status-Line: SIP/2.0 200 OK
Message Header
Via: SIP/2.0/TLS 192.168.1.54:5061;branch=z9hG4bKhrna1od0s5astikguklhogb;rport=2316;received=dyn-ip
From: <sips:8 at kamailio-domain>;tag=8ddfaat86thc6l7u07aq
To: <sips:8 at kamailio-domain>;tag=b27e1a1d33761e85846fc98f5f3a7e58.e427
CSeq: 10516287 REGISTER
Call-ID: j47RaY3qoIdIjw7lGk2bMAiNynk0MG
Contact: <sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061>;expires=3600;received="sip:dyn-ip:2316;transport=TLS"
Server: kamailio (4.0.3 (x86_64/linux))
Content-Length: 0
No. Time Source Destination Protocol Length Info
32 73.878259000 dyn-ip kamailio-ip SIP 487 Request: REGISTER sips:kamailio-domain:5061
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: attachmate-g32 (2317), Dst Port: sip-tls (5061), Seq: 401, Ack: 1695, Len: 421
Request-Line: REGISTER sips:kamailio-domain:5061 SIP/2.0
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;branch=z9hG4bK3ddb87fredhc635m96k6bik;rport
From: <sips:3 at kamailio-domain>;tag=mtbr8797t1hc607296k6
To: <sips:3 at kamailio-domain>
Contact: <sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061>;expires=3600
CSeq: 22532506 REGISTER
Call-ID: zN2Q7kY5oIc6RkCEpqAV_PdJrkZsHc
User-Agent: Nokia RM-632 101.003
Max-Forwards: 70
Content-Length: 0
No. Time Source Destination Protocol Length Info
33 73.878943000 kamailio-ip dyn-ip SIP 551 Status: 401 Unauthorized (0 bindings)
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: attachmate-g32 (2317), Seq: 1695, Ack: 822, Len: 485
Status-Line: SIP/2.0 401 Unauthorized
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;branch=z9hG4bK3ddb87fredhc635m96k6bik;rport=2317;received=dyn-ip
From: <sips:3 at kamailio-domain>;tag=mtbr8797t1hc607296k6
To: <sips:3 at kamailio-domain>;tag=b27e1a1d33761e85846fc98f5f3a7e58.982b
CSeq: 22532506 REGISTER
Call-ID: zN2Q7kY5oIc6RkCEpqAV_PdJrkZsHc
WWW-Authxxx
Server: kamailio (4.0.3 (x86_64/linux))
Content-Length: 0
No. Time Source Destination Protocol Length Info
34 74.022701000 dyn-ip kamailio-ip SIP 663 Request: REGISTER sips:kamailio-domain:5061
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: attachmate-g32 (2317), Dst Port: sip-tls (5061), Seq: 822, Ack: 2180, Len: 597
Request-Line: REGISTER sips:kamailio-domain:5061 SIP/2.0
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;branch=z9hG4bK9ifkdbq6lucnnikgmgep77j;rport
From: <sips:3 at kamailio-domain>;tag=mtbr8797t1hc607296k6
To: <sips:3 at kamailio-domain>
Contact: <sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061>;expires=3600
CSeq: 22532507 REGISTER
Call-ID: zN2Q7kY5oIc6RkCEpqAV_PdJrkZsHc
User-Agent: Nokia RM-632 101.003
Max-Forwards: 70
Authorizationxxx
Content-Length: 0
No. Time Source Destination Protocol Length Info
35 74.023558000 kamailio-ip dyn-ip SIP 583 Status: 200 OK (1 bindings)
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: attachmate-g32 (2317), Seq: 2180, Ack: 1419, Len: 517
Status-Line: SIP/2.0 200 OK
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;branch=z9hG4bK9ifkdbq6lucnnikgmgep77j;rport=2317;received=dyn-ip
From: <sips:3 at kamailio-domain>;tag=mtbr8797t1hc607296k6
To: <sips:3 at kamailio-domain>;tag=b27e1a1d33761e85846fc98f5f3a7e58.c899
CSeq: 22532507 REGISTER
Call-ID: zN2Q7kY5oIc6RkCEpqAV_PdJrkZsHc
Contact: <sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061>;expires=3600;received="sip:dyn-ip:2317;transport=TLS"
Server: kamailio (4.0.3 (x86_64/linux))
Content-Length: 0
No. Time Source Destination Protocol Length Info
37 248.048583000 dyn-ip kamailio-ip SIP 695 Request: INVITE sips:8 at kamailio-domain
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: attachmate-g32 (2317), Dst Port: sip-tls (5061), Seq: 1419, Ack: 2697, Len: 629
Request-Line: INVITE sips:8 at kamailio-domain SIP/2.0
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;branch=z9hG4bKc0pr878an5hc6dta09cj64g;rport
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
To: <sips:8 at kamailio-domain>
Contact: <sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061>
Supported: precondition,100rel,timer
CSeq: 22532507 INVITE
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
Allow: UPDATE,PRACK,SUBSCRIBE,REFER,NOTIFY,INVITE,ACK,CANCEL,OPTIONS,BYE
User-Agent: Nokia RM-632 101.003 (de)
Expires: 120
Privacy: None
Session-Expires: 3600
Max-Forwards: 70
Content-Type: application/sdp
Accept-Language: de
Content-Length: 790
No. Time Source Destination Protocol Length Info
41 248.130524000 kamailio-ip dyn-ip SIP 583 Status: 407 Proxy Authentication Required
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: attachmate-g32 (2317), Seq: 2697, Ack: 2869, Len: 517
Status-Line: SIP/2.0 407 Proxy Authentication Required
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;branch=z9hG4bKc0pr878an5hc6dta09cj64g;rport=2317;received=dyn-ip
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
To: <sips:8 at kamailio-domain>;tag=b27e1a1d33761e85846fc98f5f3a7e58.0fd3
CSeq: 22532507 INVITE
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
Proxy-Authxxx
Server: kamailio (4.0.3 (x86_64/linux))
Content-Length: 0
No. Time Source Destination Protocol Length Info
42 248.164179000 dyn-ip kamailio-ip SIP 439 Request: ACK sips:8 at kamailio-domain
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: attachmate-g32 (2317), Dst Port: sip-tls (5061), Seq: 2869, Ack: 3214, Len: 373
Request-Line: ACK sips:8 at kamailio-domain SIP/2.0
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;branch=z9hG4bKc0pr878an5hc6dta09cj64g;rport
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
To: <sips:8 at kamailio-domain>;tag=b27e1a1d33761e85846fc98f5f3a7e58.0fd3
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532507 ACK
Supported: sec-agree
Max-Forwards: 70
Content-Length: 0
No. Time Source Destination Protocol Length Info
46 249.283709000 dyn-ip kamailio-ip SIP 1506 [TCP Retransmission] Request: INVITE sips:8 at kamailio-domain
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: attachmate-g32 (2317), Dst Port: sip-tls (5061), Seq: 3242, Ack: 3214, Len: 1440
Request-Line: INVITE sips:8 at kamailio-domain SIP/2.0
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
To: <sips:8 at kamailio-domain>
Contact: <sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061>
Supported: precondition,100rel,timer
CSeq: 22532508 INVITE
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
Allow: UPDATE,PRACK,SUBSCRIBE,REFER,NOTIFY,INVITE,ACK,CANCEL,OPTIONS,BYE
User-Agent: Nokia RM-632 101.003 (de)
Expires: 120
Privacy: None
Session-Expires: 3600
Max-Forwards: 70
Proxy-Authxxx
Content-Type: application/sdp
Accept-Language: de
Content-Length: 790
No. Time Source Destination Protocol Length Info
50 249.306807000 kamailio-ip dyn-ip SIP 455 Status: 100 trying -- your call is important to us
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: attachmate-g32 (2317), Seq: 3214, Ack: 4868, Len: 389
Status-Line: SIP/2.0 100 trying -- your call is important to us
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport=2317;received=dyn-ip
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
To: <sips:8 at kamailio-domain>
CSeq: 22532508 INVITE
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
Server: kamailio (4.0.3 (x86_64/linux))
Content-Length: 0
No. Time Source Destination Protocol Length Info
52 249.307613000 kamailio-ip dyn-ip SIP/SDP 295 Request: INVITE sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061, with session description
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: sent-lm (2316), Seq: 4137, Ack: 1419, Len: 229
[2 Reassembled TCP Segments (1669 bytes): #51(1440), #52(229)]
Request-Line: INVITE sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061 SIP/2.0
Message Header
Record-Route: <sips:kamailio-ip:5061;transport=tls;lr=on;ftag=jkkr87em49hc7eu809cj;nat=yes>
Via: SIP/2.0/TLS kamailio-ip:5061;branch=z9hG4bKf71.c8476375.0;i=2
Via: SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport=2317
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
To: <sips:8 at kamailio-domain>
Contact: <sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061;alias=dyn-ip~2317~3>
Supported: precondition,100rel,timer
CSeq: 22532508 INVITE
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
Allow: UPDATE,PRACK,SUBSCRIBE,REFER,NOTIFY,INVITE,ACK,CANCEL,OPTIONS,BYE
User-Agent: Nokia RM-632 101.003 (de)
Expires: 120
Privacy: None
Session-Expires: 3600
Max-Forwards: 16
Content-Type: application/sdp
Accept-Language: de
Content-Length: 794
Message Body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): 3 63547248628293000 63547248628293000 IN IP4 kamailio-ip
Session Name (s): -
Connection Information (c): IN IP4 kamailio-ip
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 49246 RTP/SAVP 100 0 8 97 18 96 98 13
Media Attribute (a): sendrecv
Media Attribute (a): crypto:1 AES_CM_128_HMAC_SHA1_80 xxx
Media Attribute (a): crypto:2 AES_CM_128_HMAC_SHA1_32 xxx
Media Attribute (a): curr:sec e2e none
Media Attribute (a): des:sec optional e2e sendrecv
Media Attribute (a): rtcp:49247
Media Attribute (a): rtpmap:100 AMR-WB/16000
Media Attribute (a): ptime:20
Media Attribute (a): maxptime:200
Media Attribute (a): fmtp:100 mode-change-period=2; mode-change-neighbor=1
Media Attribute (a): rtpmap:0 PCMU/8000
Media Attribute (a): rtpmap:8 PCMA/8000
Media Attribute (a): rtpmap:97 iLBC/8000
Media Attribute (a): rtpmap:18 G729/8000
Media Attribute (a): fmtp:18 annexb=no
Media Attribute (a): rtpmap:96 AMR/8000
Media Attribute (a): fmtp:96 mode-set=0,1,2,3,4,5,6,7; mode-change-neighbor=1
Media Attribute (a): rtpmap:98 telephone-event/8000
Media Attribute (a): fmtp:98 0-15
Media Attribute (a): rtpmap:13 CN/8000
Media Attribute (a): nortpproxy:yes
No. Time Source Destination Protocol Length Info
54 249.459550000 dyn-ip kamailio-ip SIP 455 Status: 100 Trying
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: sent-lm (2316), Dst Port: sip-tls (5061), Seq: 1419, Ack: 4366, Len: 389
Status-Line: SIP/2.0 100 Trying
Message Header
Via: SIP/2.0/TLS kamailio-ip:5061;branch=z9hG4bKf71.c8476375.0;i=2,SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport=2317
To: <sips:8 at kamailio-domain>
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532508 INVITE
Content-Length: 0
No. Time Source Destination Protocol Length Info
57 249.968631000 dyn-ip kamailio-ip SIP 839 Status: 183 Session Progress
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: sent-lm (2316), Dst Port: sip-tls (5061), Seq: 1808, Ack: 4366, Len: 773
Status-Line: SIP/2.0 183 Session Progress
Message Header
Record-Route: <sips:kamailio-ip:5061;transport=TLS;lr=on;ftag=jkkr87em49hc7eu809cj;nat=yes>
Via: SIP/2.0/TLS kamailio-ip:5061;branch=z9hG4bKf71.c8476375.0;i=2,SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport=2317
Require: 100rel,precondition
Contact: <sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061>
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
Supported: precondition,100rel
RSeq: 4294967
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532508 INVITE
Allow: UPDATE,PRACK,SUBSCRIBE,REFER,NOTIFY,INVITE,ACK,CANCEL,OPTIONS,BYE
Content-Type: application/sdp
Content-Length: 476
No. Time Source Destination Protocol Length Info
61 249.997708000 kamailio-ip dyn-ip SIP/SDP 1287 Status: 183 Session Progress, with session description
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: attachmate-g32 (2317), Seq: 3603, Ack: 4868, Len: 1221
Status-Line: SIP/2.0 183 Session Progress
Message Header
Record-Route: <sips:kamailio-ip:5061;transport=TLS;lr=on;ftag=jkkr87em49hc7eu809cj;nat=yes>
Via: SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport=2317
Require: 100rel,precondition
Contact: <sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061;alias=dyn-ip~2316~3>
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
Supported: precondition,100rel
RSeq: 4294967
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532508 INVITE
Allow: UPDATE,PRACK,SUBSCRIBE,REFER,NOTIFY,INVITE,ACK,CANCEL,OPTIONS,BYE
Content-Type: application/sdp
Content-Length: 498
Message Body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): 8 63547248731108750 63547248731108750 IN IP4 kamailio-ip
Session Name (s): -
Connection Information (c): IN IP4 kamailio-ip
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 49250 RTP/SAVP 100 98 13
Media Attribute (a): sendrecv
Media Attribute (a): crypto:1 AES_CM_128_HMAC_SHA1_80 xxx
Media Attribute (a): curr:sec e2e recv
Media Attribute (a): des:sec mandatory e2e sendrecv
Media Attribute (a): conf:sec e2e sendrecv
Media Attribute (a): rtpmap:100 AMR-WB/16000
Media Attribute (a): ptime:20
Media Attribute (a): maxptime:200
Media Attribute (a): fmtp:100 mode-set=0,1,2,3,4,5,6,7,8
Media Attribute (a): rtpmap:98 telephone-event/8000
Media Attribute (a): fmtp:98 0-15
Media Attribute (a): rtpmap:13 CN/8000
Media Attribute (a): nortpproxy:yes
No. Time Source Destination Protocol Length Info
67 250.306681000 kamailio-ip dyn-ip SIP/SDP 119 Request: PRACK sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061, with session description
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: sent-lm (2316), Seq: 5806, Ack: 3098, Len: 53
[2 Reassembled TCP Segments (1493 bytes): #66(1440), #67(53)]
Request-Line: PRACK sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061 SIP/2.0
Message Header
Via: SIP/2.0/TLS kamailio-ip:5061;branch=z9hG4bKe71.b27f2163.0;i=2
Via: SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKv1fb87fpo9hc6lq10jsvrl0;rport=2317
Require: precondition
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
RAck: 4294967 22532508 INVITE
Supported: precondition,timer
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532509 PRACK
User-Agent: Nokia RM-632 101.003 (de)
Expires: 120
Privacy: None
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE
Session-Expires: 3600
Max-Forwards: 16
Proxy-Authxxx
Content-Type: application/sdp
Accept-Language: de
Content-Length: 505
Message Body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): 3 63547248628293000 63547248628293001 IN IP4 192.168.1.56
Session Name (s): -
Connection Information (c): IN IP4 192.168.1.56
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 4000 RTP/SAVP 100 98 13
Media Attribute (a): sendrecv
Media Attribute (a): crypto:1 AES_CM_128_HMAC_SHA1_80 xxx
Media Attribute (a): curr:sec e2e sendrecv
Media Attribute (a): des:sec mandatory e2e sendrecv
Media Attribute (a): rtcp:4001 IN IP4 192.168.1.56
Media Attribute (a): rtpmap:100 AMR-WB/16000
Media Attribute (a): ptime:20
Media Attribute (a): maxptime:200
Media Attribute (a): fmtp:100 mode-change-period=2; mode-change-neighbor=1
Media Attribute (a): rtpmap:98 telephone-event/8000
Media Attribute (a): fmtp:98 0-15
Media Attribute (a): rtpmap:13 CN/8000
No. Time Source Destination Protocol Length Info
69 250.413536000 dyn-ip kamailio-ip SIP 551 Status: 200 OK
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: sent-lm (2316), Dst Port: sip-tls (5061), Seq: 3098, Ack: 5859, Len: 485
Status-Line: SIP/2.0 200 OK
Message Header
Via: SIP/2.0/TLS kamailio-ip:5061;branch=z9hG4bKe71.b27f2163.0;i=2,SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKv1fb87fpo9hc6lq10jsvrl0;rport=2317
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532509 PRACK
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE
Content-Type: application/sdp
Content-Length: 455
No. Time Source Destination Protocol Length Info
71 250.444532000 dyn-ip kamailio-ip SIP 1196 Status: 180 Ringing
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: sent-lm (2316), Dst Port: sip-tls (5061), Seq: 3583, Ack: 5859, Len: 1130
Data (455 bytes)
0000 76 3d 30 0d 0a 6f 3d 38 20 36 33 35 34 37 32 34 v=0..o=8 6354724
0010 38 37 33 31 31 30 38 37 35 30 20 36 33 35 34 37 8731108750 63547
0020 32 34 38 37 33 31 31 30 38 37 35 31 20 49 4e 20 248731108751 IN
0030 49 50 34 20 31 39 32 2e 31 36 38 2e 31 2e 35 34 IP4 192.168.1.54
0040 0d 0a 73 3d 2d 0d 0a 63 3d 49 4e 20 49 50 34 20 ..s=-..c=IN IP4
0050 31 39 32 2e 31 36 38 2e 31 2e 35 34 0d 0a 74 3d 192.168.1.54..t=
0060 30 20 30 0d 0a 6d 3d 61 75 64 69 6f 20 34 39 31 0 0..m=audio 491
0070 35 32 20 52 54 50 2f 53 41 56 50 20 31 30 30 20 52 RTP/SAVP 100
0080 39 38 20 31 33 0d 0a 61 3d 73 65 6e 64 72 65 63 98 13..a=sendrec
0090 76 0d 0a 61 3d 63 72 79 70 74 6f 3a 31 20 41 45 v..a=crypto xxx
00a0 53 5f 43 4d 5f 31 32 38 5f 48 4d 41 43 5f 53 48 S_CM_128_HMAC_SH
00b0 41 31 5f 38 30 20 69 6e 6c 69 6e 65 3a 62 6b 74 A1_80 xxx
00c0 4b 52 6d 46 30 58 31 42 6b 52 46 5a 44 4f 48 70 KRmF0X1BkRFZDOHp
00d0 4a 5a 45 39 69 52 6b 70 74 51 30 56 78 62 31 42 JZE9iRkptQ0Vxb1B
00e0 73 58 30 67 7a 0d 0a 61 3d 63 75 72 72 3a 73 65 sX0gz..a=curr:se
00f0 63 20 65 32 65 20 73 65 6e 64 72 65 63 76 0d 0a c e2e sendrecv..
0100 61 3d 64 65 73 3a 73 65 63 20 6d 61 6e 64 61 74 a=des:sec mandat
0110 6f 72 79 20 65 32 65 20 73 65 6e 64 72 65 63 76 ory e2e sendrecv
0120 0d 0a 61 3d 72 74 70 6d 61 70 3a 31 30 30 20 41 ..a=rtpmap:100 A
0130 4d 52 2d 57 42 2f 31 36 30 30 30 0d 0a 61 3d 70 MR-WB/16000..a=p
0140 74 69 6d 65 3a 32 30 0d 0a 61 3d 6d 61 78 70 74 time:20..a=maxpt
0150 69 6d 65 3a 32 30 30 0d 0a 61 3d 66 6d 74 70 3a ime:200..a=fmtp:
0160 31 30 30 20 6d 6f 64 65 2d 73 65 74 3d 30 2c 31 100 mode-set=0,1
0170 2c 32 2c 33 2c 34 2c 35 2c 36 2c 37 2c 38 0d 0a ,2,3,4,5,6,7,8..
0180 61 3d 72 74 70 6d 61 70 3a 39 38 20 74 65 6c 65 a=rtpmap:98 tele
0190 70 68 6f 6e 65 2d 65 76 65 6e 74 2f 38 30 30 30 phone-event/8000
01a0 0d 0a 61 3d 66 6d 74 70 3a 39 38 20 30 2d 31 35 ..a=fmtp:98 0-15
01b0 0d 0a 61 3d 72 74 70 6d 61 70 3a 31 33 20 43 4e ..a=rtpmap:13 CN
01c0 2f 38 30 30 30 0d 0a /8000..
Status-Line: SIP/2.0 180 Ringing
Message Header
Record-Route: <sips:kamailio-ip:5061;transport=TLS;lr=on;ftag=jkkr87em49hc7eu809cj;nat=yes>
Via: SIP/2.0/TLS kamailio-ip:5061;branch=z9hG4bKf71.c8476375.0;i=2,SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport=2317
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
Contact: <sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061>
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
Supported: precondition,100rel
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532508 INVITE
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE
Content-Length: 0
No. Time Source Destination Protocol Length Info
73 250.445215000 kamailio-ip dyn-ip SIP/SDP 935 Status: 200 OK, with session description
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: attachmate-g32 (2317), Seq: 4824, Ack: 6398, Len: 869
Status-Line: SIP/2.0 200 OK
Message Header
Via: SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKv1fb87fpo9hc6lq10jsvrl0;rport=2317
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532509 PRACK
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE
Content-Type: application/sdp
Content-Length: 455
Message Body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): 8 63547248731108750 63547248731108751 IN IP4 192.168.1.54
Session Name (s): -
Connection Information (c): IN IP4 192.168.1.54
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 49152 RTP/SAVP 100 98 13
Media Attribute (a): sendrecv
Media Attribute (a): crypto:1 AES_CM_128_HMAC_SHA1_80 xxx
Media Attribute (a): curr:sec e2e sendrecv
Media Attribute (a): des:sec mandatory e2e sendrecv
Media Attribute (a): rtpmap:100 AMR-WB/16000
Media Attribute (a): ptime:20
Media Attribute (a): maxptime:200
Media Attribute (a): fmtp:100 mode-set=0,1,2,3,4,5,6,7,8
Media Attribute (a): rtpmap:98 telephone-event/8000
Media Attribute (a): fmtp:98 0-15
Media Attribute (a): rtpmap:13 CN/8000
No. Time Source Destination Protocol Length Info
74 250.445583000 kamailio-ip dyn-ip SIP 663 Status: 180 Ringing
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: attachmate-g32 (2317), Seq: 5693, Ack: 6398, Len: 597
Status-Line: SIP/2.0 180 Ringing
Message Header
Record-Route: <sips:kamailio-ip:5061;transport=TLS;lr=on;ftag=jkkr87em49hc7eu809cj;nat=yes>
Via: SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport=2317
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
Contact: <sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061;alias=dyn-ip~2316~3>
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
Supported: precondition,100rel
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532508 INVITE
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE
Content-Length: 0
No. Time Source Destination Protocol Length Info
76 251.546529000 dyn-ip kamailio-ip SIP 759 Status: 200 OK
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: sent-lm (2316), Dst Port: sip-tls (5061), Seq: 4713, Ack: 5859, Len: 693
Status-Line: SIP/2.0 200 OK
Message Header
Record-Route: <sips:kamailio-ip:5061;transport=TLS;lr=on;ftag=jkkr87em49hc7eu809cj;nat=yes>
Via: SIP/2.0/TLS kamailio-ip:5061;branch=z9hG4bKf71.c8476375.0;i=2,SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport=2317
Require: timer
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
Contact: <sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061>
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
Supported: precondition,timer
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532508 INVITE
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE
Session-Expires: 3600;refresher=uas
Content-Length: 0
No. Time Source Destination Protocol Length Info
78 251.546877000 kamailio-ip dyn-ip SIP 711 Status: 200 OK
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: attachmate-g32 (2317), Seq: 6290, Ack: 6398, Len: 645
Status-Line: SIP/2.0 200 OK
Message Header
Record-Route: <sips:kamailio-ip:5061;transport=TLS;lr=on;ftag=jkkr87em49hc7eu809cj;nat=yes>
Via: SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKl3svs4g1vomgr4ucmgem4l3;rport=2317
Require: timer
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
Contact: <sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061;alias=dyn-ip~2316~3>
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
Supported: precondition,timer
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532508 INVITE
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE
Session-Expires: 3600;refresher=uas
Content-Length: 0
No. Time Source Destination Protocol Length Info
81 251.678330000 kamailio-ip dyn-ip SIP 807 Request: ACK sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: sent-lm (2316), Seq: 5859, Ack: 5406, Len: 741
Request-Line: ACK sips:r8J23Mj4ovzZsBJF7Aso at 192.168.1.54:5061 SIP/2.0
Message Header
Via: SIP/2.0/TLS kamailio-ip:5061;branch=z9hG4bKcydzigwkX;i=2
Via: SIP/2.0/TLS 192.168.1.56:5061;received=dyn-ip;branch=z9hG4bKdsldsa91ok05p4ucmgekrd3;rport=2317
To: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
From: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 22532508 ACK
Supported: sec-agree
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INVITE,ACK,CANCEL,OPTIONS,BYE
Max-Forwards: 16
Proxy-Authxxx
Content-Length: 0
No. Time Source Destination Protocol Length Info
83 261.447296000 dyn-ip kamailio-ip SIP 615 Request: BYE sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061;alias=dyn-ip~2317~3
Internet Protocol Version 4, Src: dyn-ip (dyn-ip), Dst: kamailio-ip (kamailio-ip)
Transmission Control Protocol, Src Port: sent-lm (2316), Dst Port: sip-tls (5061), Seq: 5406, Ack: 6600, Len: 549
Request-Line: BYE sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061;alias=dyn-ip~2317~3 SIP/2.0
Message Header
Route: <sips:kamailio-ip:5061;transport=TLS;lr=on;ftag=jkkr87em49hc7eu809cj;nat=yes>
Via: SIP/2.0/TLS 192.168.1.54:5061;branch=z9hG4bKsievaas5cphc7h1ki3u459k;rport
To: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
From: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 1 BYE
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INVITE,ACK,CANCEL,OPTIONS,BYE
Max-Forwards: 70
Content-Length: 0
No. Time Source Destination Protocol Length Info
85 261.449699000 kamailio-ip dyn-ip SIP 599 Request: BYE sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: attachmate-g32 (2317), Seq: 6935, Ack: 7155, Len: 533
Request-Line: BYE sips:fiSWDAVNMudB0W2cxgpS at 192.168.1.56:5061 SIP/2.0
Message Header
Via: SIP/2.0/TLS kamailio-ip:5061;branch=z9hG4bK0d29.aa20da53.0;i=1
Via: SIP/2.0/TLS 192.168.1.54:5061;received=dyn-ip;branch=z9hG4bKsievaas5cphc7h1ki3u459k;rport=2316
To: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
From: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 1 BYE
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INVITE,ACK,CANCEL,OPTIONS,BYE
Max-Forwards: 16
Content-Length: 0
No. Time Source Destination Protocol Length Info
88 261.488783000 kamailio-ip dyn-ip SIP 439 Status: 200 OK
Internet Protocol Version 4, Src: kamailio-ip (kamailio-ip), Dst: dyn-ip (dyn-ip)
Transmission Control Protocol, Src Port: sip-tls (5061), Dst Port: sent-lm (2316), Seq: 6600, Ack: 5955, Len: 373
Status-Line: SIP/2.0 200 OK
Message Header
Via: SIP/2.0/TLS 192.168.1.54:5061;received=dyn-ip;branch=z9hG4bKsievaas5cphc7h1ki3u459k;rport=2316
To: <sips:3 at kamailio-domain>;tag=jkkr87em49hc7eu809cj
From: <sips:8 at kamailio-domain>;tag=95a1ri724g05o0kiuklj2432ochpfubd
Call-ID: _qaQ7rXfoIfA6M9pcPxbG5ZB_qNSbW
CSeq: 1 BYE
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE
Content-Length: 0
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