From: =?utf-8?q?I=C3=B1aki_Baz_Castillo?= <[EMAIL PROTECTED]>
Hi, in case of an INVITE with no SDP, how should the request
indicate what it wants? I think it should include an Accept header:
Accept: Application/sdp
But I wonder if Content-Type is needed (I expect no since there is
no body).What about Content-Disposition header? There is no
"Content-type: Application/sdp", so maybe "Content-Disposition:
session" is required, isn't it?
There are some ambiguities. If the Content-Length is 0, in principle,
the body is zero-length but can be of any type for which a zero-byte
document is acceptable. But in practice, Content-Length: 0 is used to
signal "no body present", in which case Content-Type need not be
given.
If Content-Length is not 0, then Content-Type must be given -- see RFC
3261 section 7.4.1.
It is good practice to provide an Accept header if the response might
contain a body. But if you omit Accept, application/sdp is impled --
see section 20.1.
Dale
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