[Serusers] (no subject)

30 Jul 2003

Hello,

I installed ser-0.8.11pre29-1.i386.rpm on Linux PC.

and started ser with default ser.cfg file.

I registered ser with "ymaekawa" and "guest001" using Windows
Messanger.

then I send instant message from "guest001" to "ymaekawa".

But, I can not send.

What's wrong?

# I attached ethereal log (text).

regards,
Maekawa.

Frame 172 (564 bytes on wire, 564 bytes captured)
    Arrival Time: Jul 30, 2003 21:16:20.927451000
    Time delta from previous packet: 5.180149000 seconds
    Time relative to first packet: 5.180149000 seconds
    Frame Number: 172
    Packet Length: 564 bytes
    Capture Length: 564 bytes
Ethernet II, Src: 00:03:47:e2:1a:f7, Dst: 00:00:4c:df:17:da
    Destination: 00:00:4c:df:17:da (NEC_df:17:da)
    Source: 00:03:47:e2:1a:f7 (Intel_e2:1a:f7)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 10.41.133.231 (10.41.133.231), Dst Addr: 10.41.133.39
(10.41.133.39)
    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: 550
    Identification: 0xc12b
    Flags: 0x00
        .0.. = Don't fragment: Not set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 128
    Protocol: UDP (0x11)
    Header checksum: 0x583b (correct)
    Source: 10.41.133.231 (10.41.133.231)
    Destination: 10.41.133.39 (10.41.133.39)
User Datagram Protocol, Src Port: 4640 (4640), Dst Port: 5060 (5060)
    Source port: 4640 (4640)
    Destination port: 5060 (5060)
    Length: 530
    Checksum: 0x2c1c (correct)
Session Initiation Protocol
    Request line: REGISTER sip:ssfch29.ssf.abk.nec.co.jp SIP/2.0
    Method: REGISTER
    Message Header
        Via: SIP/2.0/UDP 10.41.133.231:8288
        From:
<sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>;tag=8d1f4e3b-d28e-4ab1-8010-6772160056b5
        To: <sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>
        Call-ID: 69903aeb-76b5-48be-ab5a-bf53ab3daf3e(a)10.41.133.231
        CSeq: 1 REGISTER
        Contact: <sip:10.41.133.231:8288>;methods="INVITE, MESSAGE, INFO,
SUBSCRIBE, OPTIONS, BYE, CANCEL, NOTIFY, ACK"
        User-Agent: Windows RTC/1.0
        Expires: 1200
        Event: registration
        Allow-Events: presence
        Content-Length: 0

Frame 173 (678 bytes on wire, 678 bytes captured)
    Arrival Time: Jul 30, 2003 21:16:20.928332000
    Time delta from previous packet: 0.000881000 seconds
    Time relative to first packet: 5.181030000 seconds
    Frame Number: 173
    Packet Length: 678 bytes
    Capture Length: 678 bytes
Ethernet II, Src: 00:00:4c:df:17:da, Dst: 00:03:47:e2:1a:f7
    Destination: 00:03:47:e2:1a:f7 (Intel_e2:1a:f7)
    Source: 00:00:4c:df:17:da (NEC_df:17:da)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 10.41.133.39 (10.41.133.39), Dst Addr: 10.41.133.231
(10.41.133.231)
    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: 664
    Identification: 0x0000
    Flags: 0x04
        .1.. = Don't fragment: Set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x18e5 (correct)
    Source: 10.41.133.39 (10.41.133.39)
    Destination: 10.41.133.231 (10.41.133.231)
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 8288 (8288)
    Source port: 5060 (5060)
    Destination port: 8288 (8288)
    Length: 644
    Checksum: 0x7c1d (correct)
Session Initiation Protocol
    Status line: SIP/2.0 200 OK
    Status-Code: 200
    Message Header
        Via: SIP/2.0/UDP 10.41.133.231:8288
        From:
<sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>;tag=8d1f4e3b-d28e-4ab1-8010-6772160056b5
        To:
<sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>;tag=b27e1a1d33761e85846fc98f5f3a7e58.9bdf
        Call-ID: 69903aeb-76b5-48be-ab5a-bf53ab3daf3e(a)10.41.133.231
        CSeq: 1 REGISTER
        Contact: <sip:10.41.133.231:8288>;q=0.00;expires=1200
        Server: Sip EXpress router (0.8.11pre29 (i386/linux))
        Content-Length: 0
        Warning: 392 10.41.133.39:5060 "Noisy feedback tells:  pid=27811
req_src_ip=10.41.133.231 req_src_port=4640 in_uri=sip:ssfch29.ssf.abk.nec.co.jp
out_uri=sip:ssfch29.ssf.abk.nec.co.jp via_cnt==1"

Frame 174 (463 bytes on wire, 463 bytes captured)
    Arrival Time: Jul 30, 2003 21:16:20.935009000
    Time delta from previous packet: 0.006677000 seconds
    Time relative to first packet: 5.187707000 seconds
    Frame Number: 174
    Packet Length: 463 bytes
    Capture Length: 463 bytes
Ethernet II, Src: 00:03:47:e2:1a:f7, Dst: 00:00:4c:df:17:da
    Destination: 00:00:4c:df:17:da (NEC_df:17:da)
    Source: 00:03:47:e2:1a:f7 (Intel_e2:1a:f7)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 10.41.133.231 (10.41.133.231), Dst Addr: 10.41.133.39
(10.41.133.39)
    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: 449
    Identification: 0xc12c
    Flags: 0x00
        .0.. = Don't fragment: Not set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 128
    Protocol: UDP (0x11)
    Header checksum: 0x589f (correct)
    Source: 10.41.133.231 (10.41.133.231)
    Destination: 10.41.133.39 (10.41.133.39)
User Datagram Protocol, Src Port: 4640 (4640), Dst Port: 5060 (5060)
    Source port: 4640 (4640)
    Destination port: 5060 (5060)
    Length: 429
    Checksum: 0xd50d (correct)
Session Initiation Protocol
    Request line: SUBSCRIBE sip:guest001@ssfch29.ssf.abk.nec.co.jp SIP/2.0
    Method: SUBSCRIBE
    Message Header
        Via: SIP/2.0/UDP 10.41.133.231:8288
        From: "ymaekawa"
<sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>;tag=4f269f57-84df-46d1-aeef-18d57f0f0d11
        To: <sip:guest001@ssfch29.ssf.abk.nec.co.jp>
        Call-ID: 71439ab0-bed1-4b23-9063-9f9239a81aeb(a)10.41.133.231
        CSeq: 1 SUBSCRIBE
        Contact: <sip:10.41.133.231:8288>
        User-Agent: Windows RTC/1.0
        Expires: 1800
        Content-Length: 0

Frame 175 (660 bytes on wire, 660 bytes captured)
    Arrival Time: Jul 30, 2003 21:16:20.935590000
    Time delta from previous packet: 0.000581000 seconds
    Time relative to first packet: 5.188288000 seconds
    Frame Number: 175
    Packet Length: 660 bytes
    Capture Length: 660 bytes
Ethernet II, Src: 00:00:4c:df:17:da, Dst: 00:03:47:e2:1a:f7
    Destination: 00:03:47:e2:1a:f7 (Intel_e2:1a:f7)
    Source: 00:00:4c:df:17:da (NEC_df:17:da)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 10.41.133.39 (10.41.133.39), Dst Addr: 10.41.133.231
(10.41.133.231)
    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: 646
    Identification: 0x0000
    Flags: 0x04
        .1.. = Don't fragment: Set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x18f7 (correct)
    Source: 10.41.133.39 (10.41.133.39)
    Destination: 10.41.133.231 (10.41.133.231)
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 8288 (8288)
    Source port: 5060 (5060)
    Destination port: 8288 (8288)
    Length: 626
    Checksum: 0x05a5 (correct)
Session Initiation Protocol
    Status line: SIP/2.0 404 Not Found
    Status-Code: 404
    Message Header
        Via: SIP/2.0/UDP 10.41.133.231:8288
        From: "ymaekawa"
<sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>;tag=4f269f57-84df-46d1-aeef-18d57f0f0d11
        To:
<sip:guest001@ssfch29.ssf.abk.nec.co.jp>;tag=b27e1a1d33761e85846fc98f5f3a7e58.9bdf
        Call-ID: 71439ab0-bed1-4b23-9063-9f9239a81aeb(a)10.41.133.231
        CSeq: 1 SUBSCRIBE
        Server: Sip EXpress router (0.8.11pre29 (i386/linux))
        Content-Length: 0
        Warning: 392 10.41.133.39:5060 "Noisy feedback tells:  pid=27809
req_src_ip=10.41.133.231 req_src_port=4640 in_uri=sip:guest001@ssfch29.ssf.abk.nec.co.jp
out_uri=sip:guest001@ssfch29.ssf.abk.nec.co.jp via_cnt==1"

Frame 495 (613 bytes on wire, 613 bytes captured)
    Arrival Time: Jul 30, 2003 21:16:30.264431000
    Time delta from previous packet: 9.328841000 seconds
    Time relative to first packet: 14.517129000 seconds
    Frame Number: 495
    Packet Length: 613 bytes
    Capture Length: 613 bytes
Ethernet II, Src: 00:00:4c:df:17:da, Dst: 00:03:47:e2:1a:f7
    Destination: 00:03:47:e2:1a:f7 (Intel_e2:1a:f7)
    Source: 00:00:4c:df:17:da (NEC_df:17:da)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 10.41.133.39 (10.41.133.39), Dst Addr: 10.41.133.231
(10.41.133.231)
    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: 599
    Identification: 0x0000
    Flags: 0x04
        .1.. = Don't fragment: Set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x1926 (correct)
    Source: 10.41.133.39 (10.41.133.39)
    Destination: 10.41.133.231 (10.41.133.231)
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 8288 (8288)
    Source port: 5060 (5060)
    Destination port: 8288 (8288)
    Length: 579
    Checksum: 0xb172 (correct)
Session Initiation Protocol
    Request line: SUBSCRIBE sip:10.41.133.231:8288 SIP/2.0
    Method: SUBSCRIBE
    Message Header
        Max-Forwards: 10
        Record-Route:
<sip:ymaekawa@10.41.133.39;ftag=893c2373-524f-4666-8cdd-fab901a964ce;lr>
        Via: SIP/2.0/UDP 10.41.133.39;branch=z9hG4bK2c73.f0ffec02.0
        Via: SIP/2.0/UDP 10.41.133.26:16755
        From: "guest001"
<sip:guest001@ssfch29.ssf.abk.nec.co.jp>;tag=893c2373-524f-4666-8cdd-fab901a964ce
        To: <sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>
        Call-ID: ec875329-4967-4bd6-bd86-c7fdb63fbc77(a)10.41.133.26
        CSeq: 1 SUBSCRIBE
        Contact: <sip:10.41.133.26:16755>
        User-Agent: Windows RTC/1.0
        Expires: 1800
        Content-Length: 0

Frame 496 (610 bytes on wire, 610 bytes captured)
    Arrival Time: Jul 30, 2003 21:16:30.264829000
    Time delta from previous packet: 0.000398000 seconds
    Time relative to first packet: 14.517527000 seconds
    Frame Number: 496
    Packet Length: 610 bytes
    Capture Length: 610 bytes
Ethernet II, Src: 00:03:47:e2:1a:f7, Dst: 00:00:4c:df:17:da
    Destination: 00:00:4c:df:17:da (NEC_df:17:da)
    Source: 00:03:47:e2:1a:f7 (Intel_e2:1a:f7)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 10.41.133.231 (10.41.133.231), Dst Addr: 10.41.133.39
(10.41.133.39)
    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: 596
    Identification: 0xc18c
    Flags: 0x00
        .0.. = Don't fragment: Not set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 128
    Protocol: UDP (0x11)
    Header checksum: 0x57ac (correct)
    Source: 10.41.133.231 (10.41.133.231)
    Destination: 10.41.133.39 (10.41.133.39)
User Datagram Protocol, Src Port: 4640 (4640), Dst Port: 5060 (5060)
    Source port: 4640 (4640)
    Destination port: 5060 (5060)
    Length: 576
    Checksum: 0x967b (correct)
Session Initiation Protocol
    Status line: SIP/2.0 200 OK
    Status-Code: 200
    Message Header
        Via: SIP/2.0/UDP 10.41.133.39;branch=z9hG4bK2c73.f0ffec02.0
        Via: SIP/2.0/UDP 10.41.133.26:16755
        From: "guest001"
<sip:guest001@ssfch29.ssf.abk.nec.co.jp>;tag=893c2373-524f-4666-8cdd-fab901a964ce
        To:
<sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>;tag=7bcd92fb-7ee5-4df2-8405-c6481e77b20b
        Call-ID: ec875329-4967-4bd6-bd86-c7fdb63fbc77(a)10.41.133.26
        CSeq: 1 SUBSCRIBE
        Record-Route:
<sip:ymaekawa@10.41.133.39;ftag=893c2373-524f-4666-8cdd-fab901a964ce;lr>
        Contact: <sip:10.41.133.231:8288>
        User-Agent: Windows RTC/1.0
        Expires: 1800
        Content-Length: 0

Frame 3424 (817 bytes on wire, 817 bytes captured)
    Arrival Time: Jul 30, 2003 21:17:49.360760000
    Time delta from previous packet: 79.095931000 seconds
    Time relative to first packet: 93.613458000 seconds
    Frame Number: 3424
    Packet Length: 817 bytes
    Capture Length: 817 bytes
Ethernet II, Src: 00:00:4c:df:17:da, Dst: 00:03:47:e2:1a:f7
    Destination: 00:03:47:e2:1a:f7 (Intel_e2:1a:f7)
    Source: 00:00:4c:df:17:da (NEC_df:17:da)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 10.41.133.39 (10.41.133.39), Dst Addr: 10.41.133.231
(10.41.133.231)
    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: 803
    Identification: 0x0000
    Flags: 0x04
        .1.. = Don't fragment: Set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x185a (correct)
    Source: 10.41.133.39 (10.41.133.39)
    Destination: 10.41.133.231 (10.41.133.231)
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 8288 (8288)
    Source port: 5060 (5060)
    Destination port: 8288 (8288)
    Length: 783
    Checksum: 0x0e6a (correct)
Session Initiation Protocol
    Request line: MESSAGE sip:10.41.133.231:8288 SIP/2.0
    Method: MESSAGE
    Message Header
        Max-Forwards: 10
        Record-Route:
<sip:ymaekawa@10.41.133.39;ftag=9ede1c1e-9770-4372-80c2-b2422462409b;lr>
        Via: SIP/2.0/UDP 10.41.133.39;branch=z9hG4bKad56.ba8de2f5.0
        Via: SIP/2.0/UDP 10.41.133.26:16755
        From: "guest001"
<sip:guest001@ssfch29.ssf.abk.nec.co.jp>;tag=9ede1c1e-9770-4372-80c2-b2422462409b
        To: <sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>
        Call-ID: dd87d35b-d56d-441c-bc1d-7c9926d107b7(a)10.41.133.26
        CSeq: 1 MESSAGE
        Contact: <sip:10.41.133.26:16755>
        User-Agent: Windows RTC/1.0
        Content-Type: text/plain;
charset=UTF-8;msgr=WAAtAE0ATQBTAC0ASQBNAC0ARgBvAHIAbQBhAHQAOgAgAEYATgA9AE0AUwAlADIAMABVAEkAJQAyADAARwBvAHQAaABpAGMAOwAgAEUARgA9ADsAIABDAE8APQAwADsAIABDAFMAPQA4ADAAOwAgAFAARgA9ADAADQAKAA0ACgA
        Content-Length: 5
Session Description Protocol
    Invalid line: hello

Frame 3460 (817 bytes on wire, 817 bytes captured)
    Arrival Time: Jul 30, 2003 21:17:50.366345000
    Time delta from previous packet: 1.005585000 seconds
    Time relative to first packet: 94.619043000 seconds
    Frame Number: 3460
    Packet Length: 817 bytes
    Capture Length: 817 bytes
Ethernet II, Src: 00:00:4c:df:17:da, Dst: 00:03:47:e2:1a:f7
    Destination: 00:03:47:e2:1a:f7 (Intel_e2:1a:f7)
    Source: 00:00:4c:df:17:da (NEC_df:17:da)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 10.41.133.39 (10.41.133.39), Dst Addr: 10.41.133.231
(10.41.133.231)
    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: 803
    Identification: 0x0000
    Flags: 0x04
        .1.. = Don't fragment: Set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x185a (correct)
    Source: 10.41.133.39 (10.41.133.39)
    Destination: 10.41.133.231 (10.41.133.231)
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 8288 (8288)
    Source port: 5060 (5060)
    Destination port: 8288 (8288)
    Length: 783
    Checksum: 0x0e6a (correct)
Session Initiation Protocol
    Request line: MESSAGE sip:10.41.133.231:8288 SIP/2.0
    Method: MESSAGE
    Message Header
        Max-Forwards: 10
        Record-Route:
<sip:ymaekawa@10.41.133.39;ftag=9ede1c1e-9770-4372-80c2-b2422462409b;lr>
        Via: SIP/2.0/UDP 10.41.133.39;branch=z9hG4bKad56.ba8de2f5.0
        Via: SIP/2.0/UDP 10.41.133.26:16755
        From: "guest001"
<sip:guest001@ssfch29.ssf.abk.nec.co.jp>;tag=9ede1c1e-9770-4372-80c2-b2422462409b
        To: <sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>
        Call-ID: dd87d35b-d56d-441c-bc1d-7c9926d107b7(a)10.41.133.26
        CSeq: 1 MESSAGE
        Contact: <sip:10.41.133.26:16755>
        User-Agent: Windows RTC/1.0
        Content-Type: text/plain;
charset=UTF-8;msgr=WAAtAE0ATQBTAC0ASQBNAC0ARgBvAHIAbQBhAHQAOgAgAEYATgA9AE0AUwAlADIAMABVAEkAJQAyADAARwBvAHQAaABpAGMAOwAgAEUARgA9ADsAIABDAE8APQAwADsAIABDAFMAPQA4ADAAOwAgAFAARgA9ADAADQAKAA0ACgA
        Content-Length: 5
Session Description Protocol
    Invalid line: hello

Frame 3461 (479 bytes on wire, 479 bytes captured)
    Arrival Time: Jul 30, 2003 21:17:50.366680000
    Time delta from previous packet: 0.000335000 seconds
    Time relative to first packet: 94.619378000 seconds
    Frame Number: 3461
    Packet Length: 479 bytes
    Capture Length: 479 bytes
Ethernet II, Src: 00:03:47:e2:1a:f7, Dst: 00:00:4c:df:17:da
    Destination: 00:00:4c:df:17:da (NEC_df:17:da)
    Source: 00:03:47:e2:1a:f7 (Intel_e2:1a:f7)
    Type: IP (0x0800)
Internet Protocol, Src Addr: 10.41.133.231 (10.41.133.231), Dst Addr: 10.41.133.39
(10.41.133.39)
    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: 465
    Identification: 0xc4fa
    Flags: 0x00
        .0.. = Don't fragment: Not set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 128
    Protocol: UDP (0x11)
    Header checksum: 0x54c1 (correct)
    Source: 10.41.133.231 (10.41.133.231)
    Destination: 10.41.133.39 (10.41.133.39)
User Datagram Protocol, Src Port: 4640 (4640), Dst Port: 5060 (5060)
    Source port: 4640 (4640)
    Destination port: 5060 (5060)
    Length: 445
    Checksum: 0x3236 (correct)
Session Initiation Protocol
    Status line: SIP/2.0 400 Bad Request
    Status-Code: 400
    Message Header
        Via: SIP/2.0/UDP 10.41.133.39;branch=z9hG4bKad56.ba8de2f5.0
        Via: SIP/2.0/UDP 10.41.133.26:16755
        From: "guest001"
<sip:guest001@ssfch29.ssf.abk.nec.co.jp>;tag=9ede1c1e-9770-4372-80c2-b2422462409b
        To:
<sip:ymaekawa@ssfch29.ssf.abk.nec.co.jp>;tag=35fee637-c0fa-45dd-a780-0f99f339568c
        Call-ID: dd87d35b-d56d-441c-bc1d-7c9926d107b7(a)10.41.133.26
        CSeq: 1 MESSAGE
        User-Agent: Windows RTC/1.0
        Content-Length: 0

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[Serusers] (no subject)