[friguy3]

Why should you have to take the time to block the voice on the phones. You can tell which phones make the calls, tell them any calls placed will be taken out of their paychecks. do it 2 times, your fired. They are adults right? i think they should understand simple commands. make a call=no job

and what carrier are you with, i think, almost sure, verizon can block certain things, such as outgoing calls on a certain line.