Elwell, John wrote:
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jiri Kuthan
Sent: 20 November 2008 17:58
To: Raphael Coeffic
Cc: [email protected]; [EMAIL PROTECTED]
Subject: Re: [Sip] Review of draft-kuthan-sip-derive-00
Raphael Coeffic wrote:
I believe that the counter measure that you are proposing
has already
been adressed in the draft. Concerning call forwarding, we
know that
this is an issue.
There are two such. The caller may have call forwarding setup
--> DERIVE
test will fail.
[JRE] Why will it fail? Call forwarding applies to the handling of
INVITE requests. SUBSCRIBE requests are not necessarily handled the
same, although I imagine that many implementations may do so, and
therefore your deduction is probably correct in many cases, but not
necessarily all cases.
The point is not that it possibly may succeed. The point is that it
possibly may fail because symmetric forwarding is simply not guranteed.
Therefore we know positive DERIVE tests provide us with value, negative
don't.
-jiri
_______________________________________________
Sip mailing list https://www.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use [EMAIL PROTECTED] for questions on current sip
Use [EMAIL PROTECTED] for new developments on the application of sip
