Hello,

When terminating an early dialog (established by receiving a 180)
with a BYE request, MS Messenger does not set the To-tag to the To-
tag received in the 180.In fact it doesn't add a To-tag at all.

Following the procedures described in chapters
15.1.1 "Terminating a Session with a BYE request,UAC Behaviour" and
12.1.1 "Requests within a Dialog,Generating the Request"
of RFC3261, I think the adding of the To-tag to the BYE request
is mandated.

Can you confirm my interpretion of the RFC is correct ?
Is this a known bug in MS Messenger ? It was there in older versions
and it is still there in the latest version 4.7 (0101) .

Thanks for your help,

 Ben.

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