Yuxia Zhang wrote:
hi, all
some issues on two diffrent session policies of draft-ietf-sip-sip
session policy-framework need to be queried. could you help me? thanks.
as follow,
Producedures in the draft only describe the usage of the
session-specific policy, is right? so as for the session-independent
policy, how does UAC retrieve it?
Session-independent policies make use of the config framework
(http://tools.ietf.org/html/draft-ietf-sipping-config-framework-15) as
described in the draft.
it is only through SUBSCRIBE request and only simple interactive, is it
? Then UA will retrieve the session-indepdent immediately when UA
registering himself into the network as the said in the draft that the
session-independent policy always is applied before the
session-specific policy, is right ?
The UA will get session-independent policies when setting up the
subscription using the config framework as described in section 3.2.
Yes, session-independent policies are applied before session-specific
policies are applied.
if my understanding is right, is it indicated that there is no collide
for retrieve of two different policies, then it is no necessary for UAC
to differentiate the two different policies, so does the policy server ?
There should be no need for the UA or the policy server to differentiate
between the two policies. They are applied in the order described above.
Thanks,
Volker
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