Customer had ability to dial 0 while in voicemail to transfer to operator prior to latest firmware upgrade. System is 7060. I've set the Voice, Station, Operator groups, VM Settings. When in a users' voicemail and dial 0, the system emits 1 beep then records your voicemail, it doesn't transfer you out. also, on a extension that has not be setup you can leave voicemail or opt out by pressing zero.