Can you show me how to use this phone ?   Yes , I can help you with that . Pick up the receiver and hit one of the buttons . Do you hear a tone ?   No , I don't hear anything .   Next you dial 9 on the keypad . You should hear the tone change . Did you hear it change ?   I'm not sure .   OK . Well , after you get the line to change you have an outside line . Who are you trying to call ? 