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

I suspect you had other things going on during that trace.

The ACK looks like its from an earlier transaction (note the different CSeq and branches).
The call-id being the same is a little odd.

Do you get this in isolation of any other traffic?

In any case, this isn't a resip-devel question - I'm willing to help diagnose what you're fighting, but we probably shouldn't drag this list through any more of it.

RjS

On Apr 27, 2007, at 2:58 PM, Yuan, Frank 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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