Hi All,
I have some queries regarding Early media authorization:
1. It is mentioned in the rfc 5009 that "The P-Early-Media header
field may or may not be present
in messages containing SDP." So In the case of INVITE without
SDP, can we add P-Early-Media header
with "supported" value?
2. If UAS receives INVITE without P-Early-Media header with
"supported" value, then, can UAS add P-Early-Media
header in 1xx responses?
3. In case of reliable provisional responses, if initial offer
answer is completed, without Early media
authorization i.e. without P-Early-Media header, then can UAS
send PRACK/UPDATE with P-Early-media with value
"supported" and whether there can be direction values in 200 Ok
responses of PRACK/UPDATE?
Regards,
Suraj
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