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Hi,
I have some doubts on sip protocol.
1. RFC 3265 says that there MUST be only
one EVENT header in a SUBSCRIBE message. Suppose if a SUBSCRIBE message somes
with more that one EVENT header, then what is the best handling ??
a:>
Should we drop the message ?
b:>
Should we have to send an 4xx message back ? If so which is the best status
code to use
c:>
Should we ignore second EVENT header and process only the first one
?
2. RFC 3261 says that there MUST be only one
parameter with a given name in any header. Suppose if there is more than one
parameter with the same name in a header. then what should the best handling
?
Options are same as the above.
3. RFC 3261says that a dialog is matched based on
from tag, to tag and callid. In this case suppose if a request comes with
matching from tag, to tag, callid but with different from and to uri, then what
should be done ?
Options are same as the above.
Any responses will be appreciated.
Rgds
Krishna
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