> -----Original Message-----
> From: T.Sunil Kumar [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, May 17, 2001 9:26 AM
> To: SIP implementors
> Subject: [Sip-implementors] unsupported header
>
>
> Hi,
>
> Table 5 in bis shows 'unsupported' header as request and
> response (420)
> header. However, the explanation for 'unsupported' in sec
> 6.45 projects
> it as response header only. Which one is correct.
Bis currently does not define any semantics for Unsupported in a request. I
think its listed as a possible request header because, a long time back,
draft-ietf-sip-serverfeatures used to allow it to be present there in order
to do some extension negotiation. This process was simplifed a long time
back, so that Unsupported is not used as a request header by that extension
any longer.
This should probably be changed in Table 5 to be just a response header.
-Jonathan R.
---
Jonathan D. Rosenberg, Ph.D. 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.jdrosen.net PHONE: (973) 952-5000
http://www.dynamicsoft.com
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