Access the keypad preferences of your cell phone. Typically, you simply press the "menu" button followed by "settings." Press "keypad" and select the option for "xylophone." When you play the keyboard, notes will come out of the numbers as opposed to the stock dialing tone. This will still work with the stock dialing tone, but it sounds much better with the xylophone keypad.
Press these numbers in sequential order to the beat of the song: 989646298964629*009**89969.
Listen to the actual recording of the Crazy Frog song to play each note in rhythm.