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Re: [reSIProcate] Can sip ACK be used for Register response

Ramsundar,

 

Yes, I noticed it.

 

The Call Id.  from-tag are the same, and the time stamps are right. Besides there is no INVITE from this sip phone.  So I wonder if SIP ACK could be used for Register response since LINKSYS SIPURA phone is very popular and could not make this kind of silly mistake.

 

 

Yes, I noticed it.

The Call Id.  from-tag are the same, and the time stamps are right. Besides there is no INVITE from this sip phone.  So I wonder if SIP ACK could be used for Register response since LINKSYS SIPURA phone is very popular and could not make this kind of silly mistake.

 

 

 

Regards,

 

Frank Y 

 

 

From: Ramsundar [mailto:kramasundar@xxxxxxxxx]
Sent: Friday, April 27, 2007 2:30 PM
To: Yuan, Frank
Subject: Re: [reSIProcate] Can sip ACK be used for Register response

 

Hi Frank,

CSeq (in the ACK) seems to be different than that of the REGISTER msg.... check that...

Ramsundar

"Yuan, Frank" <Frank.Yuan@xxxxxxxxxxx> wrote:

Hi All,

 

As far as I know that SIP ACK is used only for final response of INVITE msg, but LinkSys PAP2 used it for Register response.

 

Are there any SIP RFCs to allow it?

 

Here is the sip trace:

 

[04/28/07 05:34:14.775975](sipServer00|3697826736)Rcv Stack Msg:

REGISTER sip:sip01.mynetfone.com.au SIP/2.0^M

Via: SIP/2.0/UDP 124.189.51.79:5060;branch=z9hG4bK-8310ea79^M

Max-Forwards: 70^M

Contact: 09123994 <sip:09123994@xxxxxxxxxxxxx:5060>;expires=240^M

To: 09123994 <sip:09123994@xxxxxxxxxxxxxxxxxxxxxx>^M

From: 09123994 <sip:09123994@xxxxxxxxxxxxxxxxxxxxxx>;tag=2d656c4829c17b7ao0^M

Call-ID: b3bb7dca-a99dbfba@xxxxxxxxxxxxx^M

CSeq: 62263 REGISTER^M

Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER^M

Supported: x-sipura^M

User-Agent: Linksys/PAP2-3.1.9(LSc)^M

Content-Length: 0^M

 

[04/28/07 05:34:14.776328](sipServer00|4050291632)CallObj 266 Id b3bb7dca-a99dbf

ba@xxxxxxxxxxxxx snd SIP STATUS 401 Msg

SIP/2.0 401 Unauthorized^M

Via: SIP/2.0/UDP 124.189.51.79:5060;branch=z9hG4bK-8310ea79^M

To: "09123994"<sip:09123994@xxxxxxxxxxxxxxxxxxxxxx>^M

From: <sip:09123994@xxxxxxxxxxxxxxxxxxxxxx>;tag=2d656c4829c17b7ao0^M

Call-ID: b3bb7dca-a99dbfba@xxxxxxxxxxxxx^M

CSeq: 62263 REGISTER^M

User-Agent: EN2.5.23^M

WWW-Authenticate: Digest nonce="626791f8_00266",realm="my.com",algorithm=MD5^M

Content-Length: 0^M

 

[04/28/07 05:32:14.799145](sipServer00|3697826736)Rcv Stack Msg:

ACK sip:09123994@xxxxxxxxxxxxxxxxxxxxxx SIP/2.0^M

Via: SIP/2.0/UDP 124.189.51.79:5060;branch=z9hG4bK-49c0bda0^M

To: "09123994" <sip:09123994@xxxxxxxxxxxxxxxxxxxxxx>^M

From: <sip:09123994@xxxxxxxxxxxxxxxxxxxxxx>;tag=2d656c4829c17b7ao0^M

Call-ID: b3bb7dca-a99dbfba@xxxxxxxxxxxxx^M

CSeq: 62261 ACK^M

Content-Length: 0^M

^M

 

Regards,

 

Frank Y

 

 

 

 

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