[prev in list] [next in list] [prev in thread] [next in thread] 

List:       sip-implementors
Subject:    Re: [Sip-implementors] Limit for size of user-name part of SIP-UR I used in ReqURI, To, From etc.
From:       Paul Kyzivat <pkyzivat () cisco ! com>
Date:       2005-06-28 12:50:42
Message-ID: 42C147A2.6080702 () cisco ! com
[Download RAW message or body]



Avasarala Ranjit-A20990 wrote:
> Hi
>     I don't think there is any limit as such on how long the user name can
> be. But usually the names are limited to a readable length.

Don't assume that!

There have been many proposals and scenarios where the user part of sip 
URIs is used to encode arbitrary stuff. This could lead to particularly 
long URIs.

About the only safe assumption you can make is that the length of the 
user name will be less than the length of the message containing it. :-)

	Paul

> Regards
> Ranjit
> 
> 
> 
> 
> 
> -----Original Message-----
> From: sip-implementors-bounces@cs.columbia.edu
> [mailto:sip-implementors-bounces@cs.columbia.edu] On Behalf Of Banibrata
> Dutta
> Sent: Tuesday, June 28, 2005 11:01 AM
> To: sip-implementors@cs.columbia.edu
> Subject: [Sip-implementors] Limit for size of user-name part of SIP-URI used
> in ReqURI, To, From etc.
> 
> 
> Hi,
> 
> Is there any limit imposed by the standards on the length of the user-name
> part of SIP-URI used in Request-URI, To, From etc. ? If not, then what is
> the "generally accepted" or common limit (if needed)?
> 
> Is there any document which lists the "generally accepted" / "commonly
> enforced" limits on lengths etc. ?
> 
> thanks & regards,
> Banibrata Dutta
> 
> 
> _______________________________________________
> Sip-implementors mailing list
> Sip-implementors@cs.columbia.edu
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
> _______________________________________________
> Sip-implementors mailing list
> Sip-implementors@cs.columbia.edu
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
> 

[prev in list] [next in list] [prev in thread] [next in thread]