I also remember sitting down on the floor one day playing with the telephone and I dialed 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3... (etc). I can't remember where or what I called, but I got in BIG trouble for it the following month when my parents got the phone bill. I never did it again.
They always told me NOT to play with the phone because they were afraid I'd call China.