Yes, or course it can be there.
Don't assume that because you sent it once you don't need to send it
again. There is nothing that says any of the Allow-* or Accept-* headers
are scoped to a dialog. How long the commitment is to honor one of these
headers is unspecified. So you had best put them in any time you want
the other end to take them into account.
Paul
Jagan Mohan wrote:
> Hi,
> It's mentioned in RFC 3265, Section 3.3.7 that
>
> <QUOTE>
> Any node implementing one or more event packages SHOULD include an
>
> appropriate "Allow-Events" header indicating all supported events in
> all methods which initiate dialogs and their responses (such as
> INVITE) and OPTIONS responses.
>
> <UNQUOTE>
>
> Though nothing is mentioned about Allow-Events header for a
> Re-INVITE message, I presume that Allow-events header can be present,
> in a Re-INVITE message if required. Could some one please confirm
> whether this behavior is fine?
>
> Regards,
>
> Jagan
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