Ive done it by mistake after pressing redial, I think I had been trying to book a ferry.  Press 1 for timetables then 1 for wlg to picton then 1 for somebody to take the booking.  You know the 1.  Some thing didnt work and when I pressed redial I got 111.  I didnt even think about pressing the option buttons until I got an emergency operator!!!  They didnt charge me tho !!!