Most hotel operations charge a premium for the convenience of placing long-distance phone calls directly from the room. International guests prefer to use the guest-ro om telephone rat her t han t heir ow n cell phone because international calls are so expensive by cell phone. If such calls are placed through the hotels VoIP, what is the cost per call to the hotel? If you were running the chain, would you charge a fee for in-room long-distance calls or give the calls away as just another amenity? Explain your logic.