[Serusers] [OT?]BYE issues
Klaus Darilion
klaus.mailinglists at pernau.at
Mon Aug 16 08:12:37 CEST 2004
You can try to set the debug level in ser.cfg to 7 and watch syslog. ser
will give you a lot of information for every incoming packet.
regards,
klaus
Andrew Mee wrote:
> Franz Edler wrote:
>
>>> UAC(A)----------------SER-------------UAC(B)
>>>
>>> if A calls B and then A hangs up all is fine,
>>> if A calls B and then B hangs up a 481 Call leg/transaction error
>>> occurs, this does not even get sent to the A client, the 481 is
>>> generated by SER. B then thinks it is still in a call.
>>>
>>
>> Do you have an ethereal trace? Then I might help.
>>
>
> After much investigation and talking with the other developer here this
> is what we have discovered:-
>
> I have run into a problem with the BYE SIP message being forwarded to
> the MS RTC client that sent it. If the end point
> that originated the INVITE (RTC Client A) subsequently sends the BYE,
> all is well like this ...
>
> RTC Client A SIP Server RTC Client B
> -----INVITE--------------> -----INVITE---------------->
> <----100 Trying----------- <----100 Trying-------------
> <----180 Ringing---------- <----180 Ringing------------
> <----200 OK--------------- <----200 OK-----------------
> -----ACK-----------------> -----ACK------------------->
> ...
> ---BYE-------------------> ----BYE-------------------->
> <----200 OK--------------- <----200 OK-----------------
>
>
> However, if the end point that received the INVITE (RTC Client B)
> subsequently sends the BYE, then the BYE is INCORRECTLY
>
> FORWARDED to RTC client B which (correctly) responds with a 481 like
> this...
>
> RTC Client A SIP Server RTC Client B
> -----INVITE--------------> -----INVITE---------------->
> <----100 Trying----------- <----100 Trying-------------
> <----180 Ringing---------- <----180 Ringing------------
> <----200 OK--------------- <----200 OK-----------------
> -----ACK-----------------> -----ACK------------------->
> ...
> <----BYE--------------------
> -----BYE------------------->
> <----481 Call Leg/T DNE----
>
>
> At first I thought maybe the SIP server was sending the BYE to the wrong
> place in error. So I checked on some public
> servers like sipphone.com and the behaviour was the same. Also, to
> check that this was not my RTC client application code
>
> messing up, I reproduced the same problem with RTCSample which is
> shipped with RTC 1.2.
>
> Has anyone else seend this behaviour? Is this a known problem? ANy
> suggested workarounds?
>
> Thanks in advance ...
>
> For anyone interested, here is the ethereal log of the problematic
> scenario. In this case RTC Client A is
>
> 17476684616 at sipphone.com, RTC Client B is 17476685542 at sipphone.com and
> the SIP Server is 198.65.166.131.
>
> No. Time Source Destination Protocol
> Info
> 26 12.514112 198.65.166.144 192.168.2.16 SIP/SDP
> [TCP Retransmission] Request: INVITE
>
> sip:xxx.xxx.xxx.135:55007;transport=tcp, with session description
>
> Frame 26 (1506 bytes on wire, 1506 bytes captured)
> Arrival Time: Aug 16, 2004 13:14:42.171480000
> Time delta from previous packet: 12.514112000 seconds
> Time since reference or first frame: 12.514112000 seconds
> Frame Number: 26
> Packet Length: 1506 bytes
> Capture Length: 1506 bytes
> Ethernet II, Src: 00:09:5b:a8:af:c8, Dst: 00:08:a1:05:a7:17
> Destination: 00:08:a1:05:a7:17 (CnetTech_05:a7:17)
> Source: 00:09:5b:a8:af:c8 (Netgear_a8:af:c8)
> Type: IP (0x0800)
> Internet Protocol, Src Addr: 198.65.166.144 (198.65.166.144), Dst Addr:
> 192.168.2.16 (192.168.2.16)
> Version: 4
> Header length: 20 bytes
> Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN: 0x00)
> 0001 00.. = Differentiated Services Codepoint: Unknown (0x04)
> .... ..0. = ECN-Capable Transport (ECT): 0
> .... ...0 = ECN-CE: 0
> Total Length: 1492
> Identification: 0xf9f6 (63990)
> Flags: 0x04 (Don't Fragment)
> 0... = Reserved bit: Not set
> .1.. = Don't fragment: Set
> ..0. = More fragments: Not set
> Fragment offset: 0
> Time to live: 46
> Protocol: TCP (0x06)
> Header checksum: 0x1d93 (correct)
> Source: 198.65.166.144 (198.65.166.144)
> Destination: 192.168.2.16 (192.168.2.16)
> Transmission Control Protocol, Src Port: 35683 (35683), Dst Port: 7534
> (7534), Seq: 1, Ack: 1, Len: 1440
> Source port: 35683 (35683)
> Destination port: 7534 (7534)
> Sequence number: 1 (relative sequence number)
> Next sequence number: 1441 (relative sequence number)
> Acknowledgement number: 1 (relative ack number)
> Header length: 32 bytes
> Flags: 0x0010 (ACK)
> 0... .... = Congestion Window Reduced (CWR): Not set
> .0.. .... = ECN-Echo: Not set
> ..0. .... = Urgent: Not set
> ...1 .... = Acknowledgment: Set
> .... 0... = Push: Not set
> .... .0.. = Reset: Not set
> .... ..0. = Syn: Not set
> .... ...0 = Fin: Not set
> Window size: 5808
> Checksum: 0x4692 (correct)
> Options: (12 bytes)
> NOP
> NOP
> Time stamp: tsval 961303496, tsecr 0
> SEQ/ACK analysis
> TCP Analysis Flags
> This frame is a (suspected) retransmission
> Session Initiation Protocol
> Request-Line: INVITE sip:xxx.xxx.xxx.135:55007;transport=tcp SIP/2.0
> Method: INVITE
> Resent Packet: False
> Message Header
> Record-Route:
> <sip:17476685542 at 198.65.166.131;transport=tcp;ftag=8fff010e644f4415a81b01004f5525f3;lr>
>
> Via: SIP/2.0/TCP 198.65.166.131;branch=z9hG4bKaa22.41ffc1f4.1;i=911
> Via: SIP/2.0/TCP xxx.xxx.xxx.135:44538
> Max-Forwards: 69
> From: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>;tag=8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
>
> SIP from address: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>
> SIP tag: 8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
> To: <sip:17476685542 at sipphone.com>
> Call-ID: 50ff745bbe664826af92e6820b46acda at 192.168.2.28
> CSeq: 1 INVITE
> Contact:
> <sip:17476684616 at proxy01.sipphone.com:44538;maddr=xxx.xxx.xxx.135;transport=tcp;nat=yes>
>
> User-Agent: RTC/1.2
> Content-Type: application/sdp
> Content-Length: 765
> P-hint: usrloc routed
> P-RTP-Proxy: YES
> P-Behind-NAT: Yes
> Message body
> Session Description Protocol
> Session Description Protocol Version (v): 0
> Owner/Creator, Session Id (o): - 0 0 IN IP4 xxx.xxx.xxx.135
> Owner Username: -
> Session ID: 0
> Session Version: 0
> Owner Network Type: IN
> Owner Address Type: IP4
> Owner Address: xxx.xxx.xxx.135
> Session Name (s): session
> Connection Information (c): IN IP4 198.65.166.131
> Connection Network Type: IN
> Connection Address Type: IP4
> Connection Address: 198.65.166.131
> Bandwidth Information (b): CT:1000
> Bandwidth Modifier: CT
> Bandwidth Value: 1000
> Time Description, active time (t): 0 0
> Session Start Time: 0
> Session Stop Time: 0
> Media Description, name and address (m): audio 47206 RTP/AVP
> 97 111 112 6 0 8 4 5 3 101
> Media Type: audio
> Media Port: 47206
> Media Proto: RTP/AVP
> Media Format: 97
> Media Format: 111
> Media Format: 112
> Media Format: 6
> Media Format: 0
> Media Format: 8
> Media Format: 4
> Media Format: 5
> Media Format: 3
> Media Format: 101
> Encryption Key (k):
> base64:UPAp6wJTz2cKuhRz2kaheKDj8gepCwNLQfyrmuH4s+E
> Key Type: base64
> Key Data: UPAp6wJTz2cKuhRz2kaheKDj8gepCwNLQfyrmuH4s+E
> Media Attribute (a): rtpmap:97 red/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 97 red/8000
> Media Attribute (a): rtpmap:111 SIREN/16000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 111 SIREN/16000
> Media Attribute (a): fmtp:111 bitrate=16000
> Media Attribute Fieldname: fmtp
> Media Attribute Value: 111 bitrate=16000
> Media Attribute (a): rtpmap:112 G7221/16000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 112 G7221/16000
> Media Attribute (a): fmtp:112 bitrate=24000
> Media Attribute Fieldname: fmtp
> Media Attribute Value: 112 bitrate=24000
> Media Attribute (a): rtpmap:6 DVI4/16000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 6 DVI4/16000
> Media Attribute (a): rtpmap:0 PCMU/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 0 PCMU/8000
> Media Attribute (a): rtpmap:8 PCMA/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 8 PCMA/8000
> Media Attribute (a): rtpmap:4 G723/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 4 G723/8000
> Media Attribute (a): rtpmap:5 DVI4/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 5 DVI4/8000
> Media Attribute (a): rtpmap:3 GSM/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 3 GSM/8000
> Media Attribute (a): rtpmap:101 telephone-event/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 101 telephone-event/8000
> Media Attribute (a): fmtp:101 0-16
> Media Attribute Fieldname: fmtp
> Media Attribute Value: 101 0-16
> Media Attribute (a): encryption:optional
> Media Attribute Fieldname: encryption
> Media Attribute Value: optional
> Media Description, name and address (m): video 57526 RTP/AVP
> 34 31
> Media Type: video
> Media Port: 57526
> Media Proto: RTP/AVP
> Media Format: 34
> Media Format: 31
> Encryption Key (k):
> base64:dXc/jG6ZtplhGUCGBKCdIfntQR/PxRNDeymbnC9WK9U
> Key Type: base64
> Key Data: dXc/jG6ZtplhGUCGBKCdIfntQR/PxRNDeymbnC9WK9U
> Media Attribute (a): rtpmap:34 H263/90000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 34 H263/90000
> Media Attribute (a): rtpmap:31 H261/90000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 31 H261/90000
> Media Attribute (a): encryption:optional
> Media Attribute Fieldname: encryption
> Media Attribute Value: optional
> Media Description, name and address (m): application 27591 tcp
> msdat
> Media Type: application
> Media Port: 27591
> Media Proto: tcp
> Media Format: msdat
>
> No. Time Source Destination Protocol
> Info
> 28 12.514795 192.168.2.16 198.65.166.144 SIP
> Status: 100 Trying
>
> Frame 28 (489 bytes on wire, 489 bytes captured)
> Arrival Time: Aug 16, 2004 13:14:42.172163000
> Time delta from previous packet: 0.000683000 seconds
> Time since reference or first frame: 12.514795000 seconds
> Frame Number: 28
> Packet Length: 489 bytes
> Capture Length: 489 bytes
> Ethernet II, Src: 00:08:a1:05:a7:17, Dst: 00:09:5b:a8:af:c8
> Destination: 00:09:5b:a8:af:c8 (Netgear_a8:af:c8)
> Source: 00:08:a1:05:a7:17 (CnetTech_05:a7:17)
> Type: IP (0x0800)
> Internet Protocol, Src Addr: 192.168.2.16 (192.168.2.16), Dst Addr:
> 198.65.166.144 (198.65.166.144)
> Version: 4
> Header length: 20 bytes
> Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
> 0000 00.. = Differentiated Services Codepoint: Default (0x00)
> .... ..0. = ECN-Capable Transport (ECT): 0
> .... ...0 = ECN-CE: 0
> Total Length: 475
> Identification: 0x16ee (5870)
> Flags: 0x04 (Don't Fragment)
> 0... = Reserved bit: Not set
> .1.. = Don't fragment: Set
> ..0. = More fragments: Not set
> Fragment offset: 0
> Time to live: 128
> Protocol: TCP (0x06)
> Header checksum: 0xb2a4 (correct)
> Source: 192.168.2.16 (192.168.2.16)
> Destination: 198.65.166.144 (198.65.166.144)
> Transmission Control Protocol, Src Port: 7534 (7534), Dst Port: 35683
> (35683), Seq: 1, Ack: 1497, Len: 423
> Source port: 7534 (7534)
> Destination port: 35683 (35683)
> Sequence number: 1 (relative sequence number)
> Next sequence number: 424 (relative sequence number)
> Acknowledgement number: 1497 (relative ack number)
> Header length: 32 bytes
> Flags: 0x0018 (PSH, ACK)
> 0... .... = Congestion Window Reduced (CWR): Not set
> .0.. .... = ECN-Echo: Not set
> ..0. .... = Urgent: Not set
> ...1 .... = Acknowledgment: Set
> .... 1... = Push: Set
> .... .0.. = Reset: Not set
> .... ..0. = Syn: Not set
> .... ...0 = Fin: Not set
> Window size: 65535
> Checksum: 0x093b (correct)
> Options: (12 bytes)
> NOP
> NOP
> Time stamp: tsval 31110, tsecr 961303496
> Session Initiation Protocol
> Status-Line: SIP/2.0 100 Trying
> Status-Code: 100
> Resent Packet: False
> Message Header
> Via: SIP/2.0/TCP 198.65.166.131;branch=z9hG4bKaa22.41ffc1f4.1;i=911
> Via: SIP/2.0/TCP xxx.xxx.xxx.135:44538
> From: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>;tag=8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
>
> SIP from address: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>
> SIP tag: 8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
> To:
> <sip:17476685542 at sipphone.com>;tag=161092ccf5a84e5ab90efe06a8771910
> SIP to address: <sip:17476685542 at sipphone.com>
> SIP tag: 161092ccf5a84e5ab90efe06a8771910
> Call-ID: 50ff745bbe664826af92e6820b46acda at 192.168.2.28
> CSeq: 1 INVITE
> User-Agent: RTC/1.2
> Content-Length: 0
>
> No. Time Source Destination Protocol
> Info
> 30 12.756633 192.168.2.16 198.65.166.144 SIP
> Status: 180 Ringing
>
> Frame 30 (593 bytes on wire, 593 bytes captured)
> Arrival Time: Aug 16, 2004 13:14:42.414001000
> Time delta from previous packet: 0.241838000 seconds
> Time since reference or first frame: 12.756633000 seconds
> Frame Number: 30
> Packet Length: 593 bytes
> Capture Length: 593 bytes
> Ethernet II, Src: 00:08:a1:05:a7:17, Dst: 00:09:5b:a8:af:c8
> Destination: 00:09:5b:a8:af:c8 (Netgear_a8:af:c8)
> Source: 00:08:a1:05:a7:17 (CnetTech_05:a7:17)
> Type: IP (0x0800)
> Internet Protocol, Src Addr: 192.168.2.16 (192.168.2.16), Dst Addr:
> 198.65.166.144 (198.65.166.144)
> Version: 4
> Header length: 20 bytes
> Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
> 0000 00.. = Differentiated Services Codepoint: Default (0x00)
> .... ..0. = ECN-Capable Transport (ECT): 0
> .... ...0 = ECN-CE: 0
> Total Length: 579
> Identification: 0x16ef (5871)
> Flags: 0x04 (Don't Fragment)
> 0... = Reserved bit: Not set
> .1.. = Don't fragment: Set
> ..0. = More fragments: Not set
> Fragment offset: 0
> Time to live: 128
> Protocol: TCP (0x06)
> Header checksum: 0xb23b (correct)
> Source: 192.168.2.16 (192.168.2.16)
> Destination: 198.65.166.144 (198.65.166.144)
> Transmission Control Protocol, Src Port: 7534 (7534), Dst Port: 35683
> (35683), Seq: 424, Ack: 1497, Len: 527
> Source port: 7534 (7534)
> Destination port: 35683 (35683)
> Sequence number: 424 (relative sequence number)
> Next sequence number: 951 (relative sequence number)
> Acknowledgement number: 1497 (relative ack number)
> Header length: 32 bytes
> Flags: 0x0018 (PSH, ACK)
> 0... .... = Congestion Window Reduced (CWR): Not set
> .0.. .... = ECN-Echo: Not set
> ..0. .... = Urgent: Not set
> ...1 .... = Acknowledgment: Set
> .... 1... = Push: Set
> .... .0.. = Reset: Not set
> .... ..0. = Syn: Not set
> .... ...0 = Fin: Not set
> Window size: 65535
> Checksum: 0x0931 (correct)
> Options: (12 bytes)
> NOP
> NOP
> Time stamp: tsval 31113, tsecr 961303529
> Session Initiation Protocol
> Status-Line: SIP/2.0 180 Ringing
> Status-Code: 180
> Resent Packet: False
> Message Header
> Via: SIP/2.0/TCP 198.65.166.131;branch=z9hG4bKaa22.41ffc1f4.1;i=911
> Via: SIP/2.0/TCP xxx.xxx.xxx.135:44538
> From: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>;tag=8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
>
> SIP from address: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>
> SIP tag: 8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
> To:
> <sip:17476685542 at sipphone.com>;tag=161092ccf5a84e5ab90efe06a8771910
> SIP to address: <sip:17476685542 at sipphone.com>
> SIP tag: 161092ccf5a84e5ab90efe06a8771910
> Call-ID: 50ff745bbe664826af92e6820b46acda at 192.168.2.28
> CSeq: 1 INVITE
> Record-Route:
> <sip:17476685542 at 198.65.166.131;transport=tcp;ftag=8fff010e644f4415a81b01004f5525f3;lr>
>
> User-Agent: RTC/1.2
> Content-Length: 0
>
> No. Time Source Destination Protocol
> Info
> 123 14.874474 192.168.2.16 198.65.166.144 SIP/SDP
> Status: 200 OK, with session description
>
> Frame 123 (1446 bytes on wire, 1446 bytes captured)
> Arrival Time: Aug 16, 2004 13:14:44.531842000
> Time delta from previous packet: 2.117841000 seconds
> Time since reference or first frame: 14.874474000 seconds
> Frame Number: 123
> Packet Length: 1446 bytes
> Capture Length: 1446 bytes
> Ethernet II, Src: 00:08:a1:05:a7:17, Dst: 00:09:5b:a8:af:c8
> Destination: 00:09:5b:a8:af:c8 (Netgear_a8:af:c8)
> Source: 00:08:a1:05:a7:17 (CnetTech_05:a7:17)
> Type: IP (0x0800)
> Internet Protocol, Src Addr: 192.168.2.16 (192.168.2.16), Dst Addr:
> 198.65.166.144 (198.65.166.144)
> Version: 4
> Header length: 20 bytes
> Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
> 0000 00.. = Differentiated Services Codepoint: Default (0x00)
> .... ..0. = ECN-Capable Transport (ECT): 0
> .... ...0 = ECN-CE: 0
> Total Length: 1432
> Identification: 0x171d (5917)
> Flags: 0x04 (Don't Fragment)
> 0... = Reserved bit: Not set
> .1.. = Don't fragment: Set
> ..0. = More fragments: Not set
> Fragment offset: 0
> Time to live: 128
> Protocol: TCP (0x06)
> Header checksum: 0xaeb8 (correct)
> Source: 192.168.2.16 (192.168.2.16)
> Destination: 198.65.166.144 (198.65.166.144)
> Transmission Control Protocol, Src Port: 7534 (7534), Dst Port: 35683
> (35683), Seq: 951, Ack: 1497, Len: 1380
> Source port: 7534 (7534)
> Destination port: 35683 (35683)
> Sequence number: 951 (relative sequence number)
> Next sequence number: 2331 (relative sequence number)
> Acknowledgement number: 1497 (relative ack number)
> Header length: 32 bytes
> Flags: 0x0018 (PSH, ACK)
> 0... .... = Congestion Window Reduced (CWR): Not set
> .0.. .... = ECN-Echo: Not set
> ..0. .... = Urgent: Not set
> ...1 .... = Acknowledgment: Set
> .... 1... = Push: Set
> .... .0.. = Reset: Not set
> .... ..0. = Syn: Not set
> .... ...0 = Fin: Not set
> Window size: 65535
> Checksum: 0x2c7e (correct)
> Options: (12 bytes)
> NOP
> NOP
> Time stamp: tsval 31134, tsecr 961303553
> Session Initiation Protocol
> Status-Line: SIP/2.0 200 OK
> Status-Code: 200
> Resent Packet: False
> Message Header
> Via: SIP/2.0/TCP 198.65.166.131;branch=z9hG4bKaa22.41ffc1f4.1;i=911
> Via: SIP/2.0/TCP xxx.xxx.xxx.135:44538
> From: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>;tag=8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
>
> SIP from address: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>
> SIP tag: 8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
> To:
> <sip:17476685542 at sipphone.com>;tag=161092ccf5a84e5ab90efe06a8771910
> SIP to address: <sip:17476685542 at sipphone.com>
> SIP tag: 161092ccf5a84e5ab90efe06a8771910
> Call-ID: 50ff745bbe664826af92e6820b46acda at 192.168.2.28
> CSeq: 1 INVITE
> Record-Route:
> <sip:17476685542 at 198.65.166.131;transport=tcp;ftag=8fff010e644f4415a81b01004f5525f3;lr>
>
> Contact:
> <sip:17476685542 at sipphone.com:55007;maddr=xxx.xxx.xxx.135;transport=tcp>
> User-Agent: RTC/1.2
> Content-Type: application/sdp
> Content-Length: 744
> Message body
> Session Description Protocol
> Session Description Protocol Version (v): 0
> Owner/Creator, Session Id (o): - 0 0 IN IP4 xxx.xxx.xxx.135
> Owner Username: -
> Session ID: 0
> Session Version: 0
> Owner Network Type: IN
> Owner Address Type: IP4
> Owner Address: xxx.xxx.xxx.135
> Session Name (s): session
> Connection Information (c): IN IP4 xxx.xxx.xxx.135
> Connection Network Type: IN
> Connection Address Type: IP4
> Connection Address: xxx.xxx.xxx.135
> Bandwidth Information (b): CT:1000
> Bandwidth Modifier: CT
> Bandwidth Value: 1000
> Time Description, active time (t): 0 0
> Session Start Time: 0
> Session Stop Time: 0
> Media Description, name and address (m): audio 1652 RTP/AVP 97
> 111 112 6 0 8 4 5 3 101
> Media Type: audio
> Media Port: 1652
> Media Proto: RTP/AVP
> Media Format: 97
> Media Format: 111
> Media Format: 112
> Media Format: 6
> Media Format: 0
> Media Format: 8
> Media Format: 4
> Media Format: 5
> Media Format: 3
> Media Format: 101
> Encryption Key (k):
> base64:4dI9OtfFSOlW3z15eN2eORbIiIgFAqgJ5gdjdsF6zo4
> Key Type: base64
> Key Data: 4dI9OtfFSOlW3z15eN2eORbIiIgFAqgJ5gdjdsF6zo4
> Media Attribute (a): rtpmap:97 red/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 97 red/8000
> Media Attribute (a): rtpmap:111 SIREN/16000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 111 SIREN/16000
> Media Attribute (a): fmtp:111 bitrate=16000
> Media Attribute Fieldname: fmtp
> Media Attribute Value: 111 bitrate=16000
> Media Attribute (a): rtpmap:112 G7221/16000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 112 G7221/16000
> Media Attribute (a): fmtp:112 bitrate=24000
> Media Attribute Fieldname: fmtp
> Media Attribute Value: 112 bitrate=24000
> Media Attribute (a): rtpmap:6 DVI4/16000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 6 DVI4/16000
> Media Attribute (a): rtpmap:0 PCMU/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 0 PCMU/8000
> Media Attribute (a): rtpmap:8 PCMA/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 8 PCMA/8000
> Media Attribute (a): rtpmap:4 G723/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 4 G723/8000
> Media Attribute (a): rtpmap:5 DVI4/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 5 DVI4/8000
> Media Attribute (a): rtpmap:3 GSM/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 3 GSM/8000
> Media Attribute (a): rtpmap:101 telephone-event/8000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 101 telephone-event/8000
> Media Attribute (a): fmtp:101 0-16
> Media Attribute Fieldname: fmtp
> Media Attribute Value: 101 0-16
> Media Attribute (a): encryption:optional
> Media Attribute Fieldname: encryption
> Media Attribute Value: optional
> Media Description, name and address (m): video 8286 RTP/AVP 34 31
> Media Type: video
> Media Port: 8286
> Media Proto: RTP/AVP
> Media Format: 34
> Media Format: 31
> Encryption Key (k):
> base64:NyQLbIpRWBJsB09qGKV79sBoeAt0MZ+swPh1IptHqGw
> Key Type: base64
> Key Data: NyQLbIpRWBJsB09qGKV79sBoeAt0MZ+swPh1IptHqGw
> Media Attribute (a): rtpmap:34 H263/90000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 34 H263/90000
> Media Attribute (a): rtpmap:31 H261/90000
> Media Attribute Fieldname: rtpmap
> Media Attribute Value: 31 H261/90000
> Media Attribute (a): encryption:optional
> Media Attribute Fieldname: encryption
> Media Attribute Value: optional
> Media Description, name and address (m): application 26567 tcp
> msdata
> Media Type: application
> Media Port: 26567
> Media Proto: tcp
> Media Format: msdata
> Media Attribute (a): recvonly
> Media Attribute (a): encryption:optional
> Media Attribute Fieldname: encryption
> Media Attribute Value: optional
>
> No. Time Source Destination Protocol
> Info
> 242 36.216653 192.168.2.16 198.65.166.131 SIP
> Request: BYE
>
> sip:17476685542 at 198.65.166.131;transport=tcp;ftag=8fff010e644f4415a81b01004f5525f3;lr
>
>
> Frame 242 (597 bytes on wire, 597 bytes captured)
> Arrival Time: Aug 16, 2004 13:15:05.874021000
> Time delta from previous packet: 21.342179000 seconds
> Time since reference or first frame: 36.216653000 seconds
> Frame Number: 242
> Packet Length: 597 bytes
> Capture Length: 597 bytes
> Ethernet II, Src: 00:08:a1:05:a7:17, Dst: 00:09:5b:a8:af:c8
> Destination: 00:09:5b:a8:af:c8 (Netgear_a8:af:c8)
> Source: 00:08:a1:05:a7:17 (CnetTech_05:a7:17)
> Type: IP (0x0800)
> Internet Protocol, Src Addr: 192.168.2.16 (192.168.2.16), Dst Addr:
> 198.65.166.131 (198.65.166.131)
> Version: 4
> Header length: 20 bytes
> Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
> 0000 00.. = Differentiated Services Codepoint: Default (0x00)
> .... ..0. = ECN-Capable Transport (ECT): 0
> .... ...0 = ECN-CE: 0
> Total Length: 583
> Identification: 0x1744 (5956)
> Flags: 0x04 (Don't Fragment)
> 0... = Reserved bit: Not set
> .1.. = Don't fragment: Set
> ..0. = More fragments: Not set
> Fragment offset: 0
> Time to live: 128
> Protocol: TCP (0x06)
> Header checksum: 0xb1ef (correct)
> Source: 192.168.2.16 (192.168.2.16)
> Destination: 198.65.166.131 (198.65.166.131)
> Transmission Control Protocol, Src Port: 1078 (1078), Dst Port: 5060
> (5060), Seq: 0, Ack: 0, Len: 543
> Source port: 1078 (1078)
> Destination port: 5060 (5060)
> Sequence number: 0 (relative sequence number)
> Next sequence number: 543 (relative sequence number)
> Acknowledgement number: 0 (relative ack number)
> Header length: 20 bytes
> Flags: 0x0018 (PSH, ACK)
> 0... .... = Congestion Window Reduced (CWR): Not set
> .0.. .... = ECN-Echo: Not set
> ..0. .... = Urgent: Not set
> ...1 .... = Acknowledgment: Set
> .... 1... = Push: Set
> .... .0.. = Reset: Not set
> .... ..0. = Syn: Not set
> .... ...0 = Fin: Not set
> Window size: 64111
> Checksum: 0xcaf9 (correct)
> Session Initiation Protocol
> Request-Line: BYE
> sip:17476685542 at 198.65.166.131;transport=tcp;ftag=8fff010e644f4415a81b01004f5525f3;lr
>
> Method: BYE
> Resent Packet: False
> Message Header
> Via: SIP/2.0/TCP xxx.xxx.xxx.135:55007
> Max-Forwards: 70
> From:
> <sip:17476685542 at sipphone.com>;tag=161092ccf5a84e5ab90efe06a8771910
> SIP from address: <sip:17476685542 at sipphone.com>
> SIP tag: 161092ccf5a84e5ab90efe06a8771910
> To: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>;tag=8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
>
> SIP to address: "HS User" <sip:17476684616 at proxy01.sipphone.com>
> SIP tag: 8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
> Call-ID: 50ff745bbe664826af92e6820b46acda at 192.168.2.28
> CSeq: 1 BYE
> Route:
> <sip:17476684616 at proxy01.sipphone.com:44538;maddr=xxx.xxx.xxx.135;transport=tcp;nat=yes>
>
> User-Agent: RTC/1.2
> Content-Length: 0
>
> No. Time Source Destination Protocol
> Info
> 249 36.689918 198.65.166.144 192.168.2.16 SIP
> Request: BYE sip:xxx.xxx.xxx.135:55007;transport=tcp
>
> Frame 249 (698 bytes on wire, 698 bytes captured)
> Arrival Time: Aug 16, 2004 13:15:06.347286000
> Time delta from previous packet: 0.473265000 seconds
> Time since reference or first frame: 36.689918000 seconds
> Frame Number: 249
> Packet Length: 698 bytes
> Capture Length: 698 bytes
> Ethernet II, Src: 00:09:5b:a8:af:c8, Dst: 00:08:a1:05:a7:17
> Destination: 00:08:a1:05:a7:17 (CnetTech_05:a7:17)
> Source: 00:09:5b:a8:af:c8 (Netgear_a8:af:c8)
> Type: IP (0x0800)
> Internet Protocol, Src Addr: 198.65.166.144 (198.65.166.144), Dst Addr:
> 192.168.2.16 (192.168.2.16)
> Version: 4
> Header length: 20 bytes
> Differentiated Services Field: 0x10 (DSCP 0x04: Unknown DSCP; ECN: 0x00)
> 0001 00.. = Differentiated Services Codepoint: Unknown (0x04)
> .... ..0. = ECN-Capable Transport (ECT): 0
> .... ...0 = ECN-CE: 0
> Total Length: 684
> Identification: 0x499e (18846)
> Flags: 0x04 (Don't Fragment)
> 0... = Reserved bit: Not set
> .1.. = Don't fragment: Set
> ..0. = More fragments: Not set
> Fragment offset: 0
> Time to live: 46
> Protocol: TCP (0x06)
> Header checksum: 0xd113 (correct)
> Source: 198.65.166.144 (198.65.166.144)
> Destination: 192.168.2.16 (192.168.2.16)
> Transmission Control Protocol, Src Port: 35749 (35749), Dst Port: 7534
> (7534), Seq: 1, Ack: 1, Len: 632
> Source port: 35749 (35749)
> Destination port: 7534 (7534)
> Sequence number: 1 (relative sequence number)
> Next sequence number: 633 (relative sequence number)
> Acknowledgement number: 1 (relative ack number)
> Header length: 32 bytes
> Flags: 0x0018 (PSH, ACK)
> 0... .... = Congestion Window Reduced (CWR): Not set
> .0.. .... = ECN-Echo: Not set
> ..0. .... = Urgent: Not set
> ...1 .... = Acknowledgment: Set
> .... 1... = Push: Set
> .... .0.. = Reset: Not set
> .... ..0. = Syn: Not set
> .... ...0 = Fin: Not set
> Window size: 5808
> Checksum: 0x04f6 (correct)
> Options: (12 bytes)
> NOP
> NOP
> Time stamp: tsval 961305922, tsecr 0
> Session Initiation Protocol
> Request-Line: BYE sip:xxx.xxx.xxx.135:55007;transport=tcp SIP/2.0
> Method: BYE
> Resent Packet: False
> Message Header
> Record-Route:
> <sip:17476685542 at 198.65.166.131;transport=tcp;ftag=161092ccf5a84e5ab90efe06a8771910;lr>
>
> Via: SIP/2.0/TCP 198.65.166.131;branch=z9hG4bKaa22.51ffc1f4.1;i=421
> Via: SIP/2.0/TCP xxx.xxx.xxx.135:55007
> Max-Forwards: 69
> From:
> <sip:17476685542 at sipphone.com>;tag=161092ccf5a84e5ab90efe06a8771910
> SIP from address: <sip:17476685542 at sipphone.com>
> SIP tag: 161092ccf5a84e5ab90efe06a8771910
> To: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>;tag=8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
>
> SIP to address: "HS User" <sip:17476684616 at proxy01.sipphone.com>
> SIP tag: 8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
> Call-ID: 50ff745bbe664826af92e6820b46acda at 192.168.2.28
> CSeq: 1 BYE
> User-Agent: RTC/1.2
> Content-Length: 0
> P-hint: usrloc routed
> P-RTP-Proxy: YES
> P-Behind-NAT: Yes
>
> No. Time Source Destination Protocol
> Info
> 255 37.002771 192.168.2.16 198.65.166.144 SIP
> Status: 481 Call Leg/Transaction Does Not Exist
>
> Frame 255 (515 bytes on wire, 515 bytes captured)
> Arrival Time: Aug 16, 2004 13:15:06.660139000
> Time delta from previous packet: 0.312853000 seconds
> Time since reference or first frame: 37.002771000 seconds
> Frame Number: 255
> Packet Length: 515 bytes
> Capture Length: 515 bytes
> Ethernet II, Src: 00:08:a1:05:a7:17, Dst: 00:09:5b:a8:af:c8
> Destination: 00:09:5b:a8:af:c8 (Netgear_a8:af:c8)
> Source: 00:08:a1:05:a7:17 (CnetTech_05:a7:17)
> Type: IP (0x0800)
> Internet Protocol, Src Addr: 192.168.2.16 (192.168.2.16), Dst Addr:
> 198.65.166.144 (198.65.166.144)
> Version: 4
> Header length: 20 bytes
> Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
> 0000 00.. = Differentiated Services Codepoint: Default (0x00)
> .... ..0. = ECN-Capable Transport (ECT): 0
> .... ...0 = ECN-CE: 0
> Total Length: 501
> Identification: 0x1749 (5961)
> Flags: 0x04 (Don't Fragment)
> 0... = Reserved bit: Not set
> .1.. = Don't fragment: Set
> ..0. = More fragments: Not set
> Fragment offset: 0
> Time to live: 128
> Protocol: TCP (0x06)
> Header checksum: 0xb22f (correct)
> Source: 192.168.2.16 (192.168.2.16)
> Destination: 198.65.166.144 (198.65.166.144)
> Transmission Control Protocol, Src Port: 7534 (7534), Dst Port: 35749
> (35749), Seq: 1, Ack: 633, Len: 449
> Source port: 7534 (7534)
> Destination port: 35749 (35749)
> Sequence number: 1 (relative sequence number)
> Next sequence number: 450 (relative sequence number)
> Acknowledgement number: 633 (relative ack number)
> Header length: 32 bytes
> Flags: 0x0018 (PSH, ACK)
> 0... .... = Congestion Window Reduced (CWR): Not set
> .0.. .... = ECN-Echo: Not set
> ..0. .... = Urgent: Not set
> ...1 .... = Acknowledgment: Set
> .... 1... = Push: Set
> .... .0.. = Reset: Not set
> .... ..0. = Syn: Not set
> .... ...0 = Fin: Not set
> Window size: 64903
> Checksum: 0x94a1 (correct)
> Options: (12 bytes)
> NOP
> NOP
> Time stamp: tsval 31355, tsecr 961305922
> Session Initiation Protocol
> Status-Line: SIP/2.0 481 Call Leg/Transaction Does Not Exist
> Status-Code: 481
> Resent Packet: False
> Message Header
> Via: SIP/2.0/TCP 198.65.166.131;branch=z9hG4bKaa22.51ffc1f4.1;i=421
> Via: SIP/2.0/TCP xxx.xxx.xxx.135:55007
> From:
> <sip:17476685542 at sipphone.com>;tag=161092ccf5a84e5ab90efe06a8771910
> SIP from address: <sip:17476685542 at sipphone.com>
> SIP tag: 161092ccf5a84e5ab90efe06a8771910
> To: "HS User"
> <sip:17476684616 at proxy01.sipphone.com>;tag=8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
>
> SIP to address: "HS User" <sip:17476684616 at proxy01.sipphone.com>
> SIP tag: 8fff010e644f4415a81b01004f5525f3;epid=e062c2bd1a
> Call-ID: 50ff745bbe664826af92e6820b46acda at 192.168.2.28
> CSeq: 1 BYE
> User-Agent: RTC/1.2
> Content-Length: 0
>
> SIP/2.0
>
>
> ------------------------------------------------------------------------
>
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