I have a client with an older house. Both the power and the telephone services (point of connection to the utility) were originally on a pole several hundred feet from the house. Several years ago they had a second phone line installed and the phone company moved their interface box from the pole to the house. The new telephone interface box is not grounded to anything. Since then they have had repeated damage to telephone equipment due to lightning. All the equipment damaged was connected to both the telephone and the power systems. They asked the telephone company to check out the problem and the telephone company agreed that the interface box should be grounded and wants to ground it to the neutral in the main power panel in the house. Is this a good idea? Any other suggestions?