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From: [email protected]
[[email protected]] On Behalf Of anand madhab
[[email protected]]
Hi, I have another query which i am not able to find out in RFC may be i
have missed but if any one have any idea about please refer:
My query is as per RFC we can have attribute line for session which
will be above media line, and we can omit media line also as per
RFC so
a) Is it legal to put only attribute line for session without any
media line ?
b) In this case if we put attribute for media without without media
line in stead of session attribute, what should be the response ?
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An SDP with no m-lines is acceptable -- RFC 4566 section 5, "An SDP session
description consists of a session-level section followed by zero or more
media-level sections." a-lines may appear before the first m-line -- see the
overall SDP format at the top of page 8.
In regard to responding to such an SDP, an answer can be sent containing zero
m-lines. Alternatively, the UAS may reject the INVITE as having a media
description that it does not support (response 488). (Not 415, which would
mean that the UAS does not support the Content-Type of the INVITE.)
Dale
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