Subject: RE: [Sip] querry about 481

From: "Cunningham, Stuart, VF-Group" <[email-masked]>
Date: Tue, 14 Jun 2005 09:56:58 +0200

Hi,

You can also use the 404 user not found which is useful in this case.

Stuart 

-----Original Message-----
From: [email-masked] [mailto:[email-masked]] On Behalf Of
Jonathan Rosenberg
Sent: Dienstag, 14. Juni 2005 04:06
To: Manish Joshi
Cc: Chadha Retesh-A19894; [email-masked]
Subject: Re: [Sip] querry about 481

Yes, you should never see a 481 for an initial request.

However, in the interests of being strict on what you send and liberal
on what you receive, I would advise against an implementation getting
particularly upset at the receipt of a 481 to a dialog-initiating
request; it should be treated as any other 4xx response in such a case.

-Jonathan R.

Manish Joshi wrote:

> Since it is a new Dialog creation request, there is no question of it 
> matching any dialog. So ideally you should not get 481 for a new 
> SUBSCRIBE initiated with a brand new call id and from tag. You can get

> this response usually for (RE)SUBSCRIBE or NOTIFY.
>  
> Regards,
> Manish
> 
> */Chadha Retesh-A19894 <[email-masked]>/* wrote:
> 
>     Yes, if the SUBSCRIBE/INVITE contains a to tag, not matching any
dialog.
> 
>     Rgds
>     Retesh
> 
>     -----Original Message-----
>     From: [email-masked] [mailto:[email-masked]] On Behalf
>     Of ayan
>     Sent: Monday, June 13, 2005 3:59 PM
>     To: [email-masked]
>     Subject: [Sip] querry about 481
> 
> 
>     Hi,
> 
>     Is it possible to receive a 481, Call Leg/transaction Does Not
>     Exist, for a
>     dialog initiating request? For egs. can we get a 481, for a first
>     SUBSCRIBE
>     which initiates a new dialog?
> 
>     Thnx in advnce.
>     /ayan
> 
>     _______________________________________________
>     Sip mailing list https://www1.ietf.org/mailman/listinfo/sip
>     This list is for NEW development of the core SIP Protocol
>     Use [email-masked] for questions on current sip
Use
>     [email-masked] for new developments on the application of sip
> 
>     _______________________________________________
>     Sip mailing list https://www1.ietf.org/mailman/listinfo/sip
>     This list is for NEW development of the core SIP Protocol
>     Use [email-masked] for questions on current sip
>     Use [email-masked] for new developments on the application of 
> sip
> 
> ----------------------------------------------------------------------
> --
> Discover Yahoo!
> Get on-the-go sports scores, stock quotes, news & more. Check it out! 
> <http://us.rd.yahoo.com/evt=32661/*http://discover.yahoo.com/mobile.ht
> ml>
> 
> 
> ----------------------------------------------------------------------
> --
> 
> _______________________________________________
> Sip mailing list  https://www1.ietf.org/mailman/listinfo/sip
> This list is for NEW development of the core SIP Protocol Use 
> [email-masked] for questions on current sip Use 
> [email-masked] for new developments on the application of sip

-- 
Jonathan D. Rosenberg, Ph.D.                   600 Lanidex Plaza
Director, Service Provider VoIP Architecture   Parsippany, NJ 07054-2711
Cisco Systems
[email-masked]                              FAX:   (973) 952-5050
http://www.jdrosen.net                         PHONE: (973) 952-5000
http://www.cisco.com

_______________________________________________
Sip mailing list  https://www1.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol Use
[email-masked] for questions on current sip Use
[email-masked] for new developments on the application of sip

_______________________________________________
Sip mailing list  https://www1.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use [email-masked] for questions on current sip
Use [email-masked] for new developments on the application of sip