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Re: [Sip] draft-ietf-sip-callee-caps-03 methods question



inline.

Juha Heinanen wrote:

Jonathan Rosenberg writes:

> Sorry for the long delay in replying, Juha.

no problem.

 >     When there
 >     exists a feature tag that describes a capability that can also be
 >     represented with a SIP header field, a UA MUST use the header field
 >     to describe the capability. A UA receiving a message that contains
 >     both the header field and the feature tag MUST use the header field,
 >     and not the feature tag.

i'm not sure if the above makes sense at least in methods vs. allow
case.  since an invite, for example, can contain many contacts each with
different set of supported methods, a single allow header cannot be used
to describe the situation.

[assuming s/invite/register]

True. In that case, the callee caps params are what you want. We will see if perhaps a clarification can be added before the document is published as an RFC.

-Jonathan R.



--
Jonathan D. Rosenberg, Ph.D.                600 Lanidex Plaza
Chief Technology Officer                    Parsippany, NJ 07054-2711
dynamicsoft
jdrosen at dynamicsoft.com                     FAX:   (973) 952-5050
http://www.jdrosen.net                      PHONE: (973) 952-5000
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