Rugged industrial phones are designed to be used in difficult environments that may test the capabilities of the phone to the limit How do they work? The same way a typical phone line will work, industrial phones are the same capabilities as these. They stand out in their material, design and shaping (depending on use) and are primarily built to withstand damage consistent with harsh working environments. Features and benefits: Weather resistance available in certain models Certified for harsh working environments Vandal resistant handsets and cords (in some models) Hands free options are available Induction loops for hearing impaired are available Where might I use one? Building sites Car parks Motorways / Highways Emergency assembly points