Hello, I have a Panasonic kxtg5976al telephone / answering machine system. I have a problem with it and the manual says to contact a Panasonic Service Centre. Its on dial lock - my only problem is my darling toddler has set this code on the phone so I don't have a clue on how to switch it off, hence I can't make calls etc. Please help. Any idea how I can turn this off manually or do I have to take it to a service centre?