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[reSIProcate] Treatment of CANCEL in UAS_Accepted or UAS_AcceptedWaitingAnswer


Hi all,

Due to race condition UAS may receive CANCEL for the initial INVITE transaction 
in Accepted or AcceptedWaitingAnswer state. As transition to OnCancel state 
occurs, 200 OK response for Cancel is sent, but session is not terminated and 
session handler is not notified. 
Does not it make more sense to send BYE (dialog is already established), 
terminate session and notify session handler (or just dispatch Cancel treatment 
to InviteSession)?

Thanks,
Boris


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