[SIPForum-discussion] Incorrect register request
Andrew Yu
andrew at asiatel.com.sg
Thu Jun 14 18:55:05 UTC 2007
Hi Lun & Vivek,
All these transmissions are send at different timing meaning that these
are 3 separated requests, though the requests looks like resent. There
are no response from the sip server and and finally 504 from the sbc to
the UAC. Response from Ondo will have the server header, those responses
without server header are from sbc.
Here's what I've identified for RFC3261 violations:
1. CSeq is always 3
2. Max-Forwards should be 70, 10 is too simply short! I've not see
any UAC sending 10 for max-forward, this can cause the packets to
be unintentionally dropped.
3. Branch-IDs in Via is not always unique, and it has been reused in
previous register requests. (Is it alright toreuse branch-id from
previous register request?)
For your comments & advice please for any unidentified RFC violations on
my part.
And as requested, the full capture of the register request:
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Request-Line: REGISTER sip:sip.abc.com SIP/2.0
Method: REGISTER
Message Header
From: 12345678
<sip:12345678 at proxy.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: sip:12345678 at proxy.abc.com
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f;uas-addr=sip.abc.com;rport
CSeq: 2 REGISTER
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
Contact: "12345678" <sip:12345678 at 192.168.1.250:5060;transport=udp>
User-Agent: OpenSIPStack-1.1.6-134
Expires: 60
Max-Forwards: 10
Allow: INVITE, BYE, ACK, REFER, MESSAGE, INFO, NOTIFY, OPTIONS
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 100 Trying
Status-Code: 100
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 2 REGISTER
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 100 Trying
Status-Code: 100
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 2 REGISTER
Server: Brekeke OnDO SIP Server (rev.172)
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 401 Unauthorized
Status-Code: 401
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>;tag=1181637698218-108102351
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 2 REGISTER
Server: Brekeke OnDO SIP Server (rev.172)
WWW-Authenticate: Digest
realm="ABC-SIP",nonce="1f2d068b25fb75ab021e4ed6d34e56a987bbc5f5"
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Request-Line: REGISTER sip:sip.abc.com SIP/2.0
Method: REGISTER
Message Header
From: 12345678
<sip:12345678 at proxy.abc.com>;tag=3a4fc117e8f818109f1cafec866a1c9f
To: sip:12345678 at proxy.abc.com
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK3a4fc117e8f818109f1dafec866a1c9f;uas-addr=sip.abc.com;rport
CSeq: 3 REGISTER
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
Contact: "12345678" <sip:12345678 at 192.168.1.250:5060;transport=udp>
User-Agent: OpenSIPStack-1.1.6-134
Expires: 60
Max-Forwards: 10
Authorization: Digest username="12345678", realm="ABC-SIP",
nonce="1f2d068b25fb75ab021e4ed6d34e56a987bbc5f5", uri="sip:sip.abc.com",
response="8c563dd4d6cd556ad3696616fa53891c", algorithm=MD5
Allow: INVITE, BYE, ACK, REFER, MESSAGE, INFO, NOTIFY, OPTIONS
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 100 Trying
Status-Code: 100
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=3a4fc117e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK3a4fc117e8f818109f1dafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 200 OK
Status-Code: 200
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=3a4fc117e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>;tag=1181637698359-777144072
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Server: Brekeke OnDO SIP Server (rev.172)
Content-Length: 0
Contact: <sip:12345678 at 220.255.131.59:57880>;expires=59;q=1.0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK3a4fc117e8f818109f1dafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Request-Line: REGISTER sip:sip.abc.com SIP/2.0
Method: REGISTER
Message Header
From: 12345678
<sip:12345678 at proxy.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: sip:12345678 at proxy.abc.com
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f;uas-addr=sip.abc.com;rport
CSeq: 3 REGISTER
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
Contact: "12345678" <sip:12345678 at 192.168.1.250:5060;transport=udp>
User-Agent: OpenSIPStack-1.1.6-134
Expires: 60
Max-Forwards: 10
Allow: INVITE, BYE, ACK, REFER, MESSAGE, INFO, NOTIFY, OPTIONS
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 200 OK
Status-Code: 200
Message Header
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f;uas-addr=sip.abc.com;rport
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Expires: 60
Contact: "12345678"
<sip:12345678 at 220.255.131.59:57880;transport=udp>
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Request-Line: REGISTER sip:sip.abc.com SIP/2.0
Method: REGISTER
Message Header
From: 12345678
<sip:12345678 at proxy.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: sip:12345678 at proxy.abc.com
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f;uas-addr=sip.abc.com;rport
CSeq: 3 REGISTER
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
Contact: "12345678" <sip:12345678 at 192.168.1.250:5060;transport=udp>
User-Agent: OpenSIPStack-1.1.6-134
Expires: 60
Max-Forwards: 10
Allow: INVITE, BYE, ACK, REFER, MESSAGE, INFO, NOTIFY, OPTIONS
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 200 OK
Status-Code: 200
Message Header
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f;uas-addr=sip.abc.com;rport
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Expires: 60
Contact: "12345678"
<sip:12345678 at 220.255.131.59:57880;transport=udp>
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Request-Line: REGISTER sip:sip.abc.com SIP/2.0
Method: REGISTER
Message Header
From: 12345678
<sip:12345678 at proxy.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: sip:12345678 at proxy.abc.com
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f;uas-addr=sip.abc.com;rport
CSeq: 3 REGISTER
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
Contact: "12345678" <sip:12345678 at 192.168.1.250:5060;transport=udp>
User-Agent: OpenSIPStack-1.1.6-134
Expires: 60
Max-Forwards: 10
Allow: INVITE, BYE, ACK, REFER, MESSAGE, INFO, NOTIFY, OPTIONS
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 100 Trying
Status-Code: 100
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 100 Trying
Status-Code: 100
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Server: Brekeke OnDO SIP Server (rev.172)
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 401 Unauthorized
Status-Code: 401
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>;tag=1181637845812-299361820
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Server: Brekeke OnDO SIP Server (rev.172)
WWW-Authenticate: Digest
realm="ABC-SIP",nonce="d3aedb4f94b5767d4a8112c4bce1b76787bbc5f5"
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Request-Line: REGISTER sip:sip.abc.com SIP/2.0
Method: REGISTER
Message Header
From: 12345678
<sip:12345678 at proxy.abc.com>;tag=55c09d18e8f818109f1dafec866a1c9f
To: sip:12345678 at proxy.abc.com
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK55c09d18e8f818109f1eafec866a1c9f;uas-addr=sip.abc.com;rport
CSeq: 3 REGISTER
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
Contact: "12345678" <sip:12345678 at 192.168.1.250:5060;transport=udp>
User-Agent: OpenSIPStack-1.1.6-134
Expires: 60
Max-Forwards: 10
Authorization: Digest username="12345678", realm="ABC-SIP",
nonce="d3aedb4f94b5767d4a8112c4bce1b76787bbc5f5", uri="sip:sip.abc.com",
response="2e56ae47e95e1c23c792899b93c3480c", algorithm=MD5
Allow: INVITE, BYE, ACK, REFER, MESSAGE, INFO, NOTIFY, OPTIONS
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 100 Trying
Status-Code: 100
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=55c09d18e8f818109f1dafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK55c09d18e8f818109f1eafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Request-Line: REGISTER sip:sip.abc.com SIP/2.0
Method: REGISTER
Message Header
From: 12345678
<sip:12345678 at proxy.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: sip:12345678 at proxy.abc.com
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f;uas-addr=sip.abc.com;rport
CSeq: 3 REGISTER
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
Contact: "12345678" <sip:12345678 at 192.168.1.250:5060;transport=udp>
User-Agent: OpenSIPStack-1.1.6-134
Expires: 60
Max-Forwards: 10
Allow: INVITE, BYE, ACK, REFER, MESSAGE, INFO, NOTIFY, OPTIONS
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 100 Trying
Status-Code: 100
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 100 Trying
Status-Code: 100
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Server: Brekeke OnDO SIP Server (rev.172)
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 401 Unauthorized
Status-Code: 401
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
To: <sip:12345678 at sip.abc.com>;tag=1181637895359-733449722
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Server: Brekeke OnDO SIP Server (rev.172)
WWW-Authenticate: Digest
realm="ABC-SIP",nonce="a0a60cf1077568e0e0cc5bfb7e15434a87bbc5f5"
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Request-Line: REGISTER sip:sip.abc.com SIP/2.0
Method: REGISTER
Message Header
From: 12345678
<sip:12345678 at proxy.abc.com>;tag=3bf8e618e8f818109f1eafec866a1c9f
To: sip:12345678 at proxy.abc.com
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK3bf8e618e8f818109f1fafec866a1c9f;uas-addr=sip.abc.com;rport
CSeq: 3 REGISTER
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
Contact: "12345678" <sip:12345678 at 192.168.1.250:5060;transport=udp>
User-Agent: OpenSIPStack-1.1.6-134
Expires: 60
Max-Forwards: 10
Authorization: Digest username="12345678", realm="ABC-SIP",
nonce="a0a60cf1077568e0e0cc5bfb7e15434a87bbc5f5", uri="sip:sip.abc.com",
response="399329b9b96fec0dd29e87ef13035270", algorithm=MD5
Allow: INVITE, BYE, ACK, REFER, MESSAGE, INFO, NOTIFY, OPTIONS
Content-Length: 0
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 100 Trying
Status-Code: 100
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=3bf8e618e8f818109f1eafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK3bf8e618e8f818109f1fafec866a1c9f
User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 5060 (5060)
Session Initiation Protocol
Status-Line: SIP/2.0 504 Server Time-out
Status-Code: 504
Message Header
From: 12345678
<sip:12345678 at sip.abc.com>;tag=3bf8e618e8f818109f1eafec866a1c9f
To: <sip:12345678 at sip.abc.com>
Call-ID: e2ffc017-e8f8-1810-8cb1-afec866a1c9f
CSeq: 3 REGISTER
Content-Length: 0
Via: SIP/2.0/UDP
192.168.1.250:5060;iid=4033;branch=z9hG4bK3bf8e618e8f818109f1fafec866a1c9f
lun Tong wrote:
> Hi, Andrew:
>
> Regarding to your 3 questions, I think,
>
> 1. The reason CSeq is not changing is because they are
> re-transmissions. That also explains why Branch-ID is not changing.
> (Though I am not sure if it is required that the Branch-ID should be
> unique for different CSeqs. ) Did you see 200OK sent back? Even if
> 200OK was sent back, can you make sure that the UAC got it?
>
> 2. Max-Forward could be any number less than 70.
>
> Regards.
> Lun
vivek krishna wrote:
> Hi,
> Can you please say what is the exact error which
> you get.Whether this request is rejected by the server
> or something else.
>
> Also are the 3 messages a retransmission or 3 separate
> requests ???
>
> Can you send the complete log of the call.
>
> Regards,
> vivek
> --- Andrew Yu <andrew at asiatel.com.sg> wrote:
>
>
>> Dear Members,
>>
>> I need your kind assistance to point out in what way
>> this UAC is sending
>> register request in violation of RFC3261
>> requirements. This UAC is using
>> opensipstack 1.1.6.134.
>>
>> Here's what I've identified for violations:
>>
>> 1. CSeq is always 3
>> 2. Max-Forwards should be 70
>> 3. Branch-IDs in Via is not always unique, and it
>> has been reused in
>> previous register requests. (Is it alright to
>> reuse branch-id from
>> previous register request?)
>>
>> User Datagram Protocol, Src Port: 5060 (5060), Dst
>> Port: 5060 (5060)
>> Session Initiation Protocol
>> Request-Line: REGISTER sip:sip.abc.com SIP/2.0
>> Method: REGISTER
>> Message Header
>> From: 12345678
>>
>>
> <sip:12345678 at proxy.abc.com>;tag=3bf8e618e8f818109f1eafec866a1c9f
>
>> To: sip:12345678 at proxy.abc.com
>> Via: SIP/2.0/UDP
>>
>>
> 192.168.1.250:5060;iid=4033;branch=z9hG4bK3bf8e618e8f818109f1fafec866a1c9f;uas-addr=sip.abc.com;rport
>
>> CSeq: 3 REGISTER
>> Call-ID:
>> e2ffc017-e8f8-1810-8cb1-afec866a1c9f
>> Contact: "12345678"
>> <sip:12345678 at 192.168.1.250:5060;transport=udp>
>> User-Agent: OpenSIPStack-1.1.6-134
>> Expires: 60
>> Max-Forwards: 10
>> Authorization: Digest username="12345678",
>> realm="ABC-SIP",
>> nonce="a0a60cf1077568e0e0cc5bfb7e15434a87bbc5f5",
>> uri="sip:sip.abc.com",
>> response="399329b9b96fec0dd29e87ef13035270",
>> algorithm=MD5
>> Allow: INVITE, BYE, ACK, REFER, MESSAGE,
>> INFO, NOTIFY, OPTIONS
>> Content-Length: 0
>>
>> User Datagram Protocol, Src Port: 5060 (5060), Dst
>> Port: 5060 (5060)
>> Session Initiation Protocol
>> Request-Line: REGISTER sip:sip.abc.com SIP/2.0
>> Method: REGISTER
>> Message Header
>> From: 12345678
>>
>>
> <sip:12345678 at proxy.abc.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
>
>> To: sip:12345678 at proxy.abc.com
>> Via: SIP/2.0/UDP
>>
>>
> 192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f;uas-addr=sip.abc.com;rport
>
>> CSeq: 3 REGISTER
>> Call-ID:
>> e2ffc017-e8f8-1810-8cb1-afec866a1c9f
>> Contact: "12345678"
>> <sip:12345678 at 192.168.1.250:5060;transport=udp>
>> User-Agent: OpenSIPStack-1.1.6-134
>> Expires: 60
>> Max-Forwards: 10
>> Allow: INVITE, BYE, ACK, REFER, MESSAGE,
>> INFO, NOTIFY, OPTIONS
>> Content-Length: 0
>>
>> User Datagram Protocol, Src Port: 5060 (5060), Dst
>> Port: 5060 (5060)
>> Session Initiation Protocol
>> Request-Line: REGISTER sip:sip.abc.com SIP/2.0
>> Method: REGISTER
>> Message Header
>> From: 12345678
>>
>>
> <sip:12345678 at proxy.smtelsip.com>;tag=e2ffc017e8f818109f1cafec866a1c9f
>
>> To: sip:12345678 at proxy.abc.com
>> Via: SIP/2.0/UDP
>>
>>
> 192.168.1.250:5060;iid=4033;branch=z9hG4bK170cc117e8f818109f1cafec866a1c9f;uas-addr=sip.abc.com;rport
>
>> CSeq: 3 REGISTER
>> Call-ID:
>> e2ffc017-e8f8-1810-8cb1-afec866a1c9f
>> Contact: "12345678"
>> <sip:12345678 at 192.168.1.250:5060;transport=udp>
>> User-Agent: OpenSIPStack-1.1.6-134
>> Expires: 60
>> Max-Forwards: 10
>> Allow: INVITE, BYE, ACK, REFER, MESSAGE,
>> INFO, NOTIFY, OPTIONS
>> Content-Length: 0
>>
>> --
>> Cheers,
>>
>> Asiatel Singapore Pte Ltd
>> Andrew Yu
>>
>> 19 Jalan Kilang Barat
>> #06-01, Acetech Centre
>> Singapore 159361
>>
>> Tel: +65 6271 8233
>> Fax: +65 6274 4266
>>
>> _______________________________________________
>> This is the SIP Forum discussion mailing list
>> TO UNSUBSCRIBE, or edit your delivery options,
>> please visit
>> http://sipforum.org/mailman/listinfo/discussion
>> Post to the list at discussion at sipforum.org
>>
>>
>
>
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--
Cheers,
Asiatel Singapore Pte Ltd
Andrew Yu
19 Jalan Kilang Barat
#06-01, Acetech Centre
Singapore 159361
Tel: +65 6271 8233
Fax: +65 6274 4266
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