Hi all,
Had a couple of doubts regarding the QoS negotiation
parameters defined in draft-ietf-sip-manyfolks-resource-07
i) In the section 5.2 it is mentioned that:
"An answerer may upgrade the desired strength in
any entry of the transaction status table, but
it must not downgrade it."
By extrapolation, I guess, it should also be allowed
to upgrade the direction-tag in the answer then. Please
confirm... What I mean to ask is whether the following
is valid -
offer: m=audio 20000 RTP/AVP 0
a=curr:qos e2e none
a=des:qos optional e2e send
answer: m=audio 20000 RTP/AVP 0
a=curr:qos e2e none
a=des:qos mandatory e2e sendrecv
ii) In case the offer, contains a unknown precondition
type (other than "qos"), the SDP answer should be
of the form (using the example the draft mentions)
m=audio 20000 RTP/AVP 0
a=des:foo unknown e2e send
What should be the SIP status code used for this response?
Should we use "580" or "488" or some other code?
Thanks for your time.
Regards,
Siddharth.
--------------------------------
Siddharth Toshniwal @ Hughes Software Systems
Prestige Opal
146, Infantry Road
Bangalore, India.
http://www.hssworld.com
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