Our offered Product switching is made from top quality components and hi-tech technology to ensure its high quality and durability.Moreover, it is strictly checked on various parameters by our expert quality analysts. The entire range is available with us in customizedWe hold expertise in offering Auto phone line changeover ( 50 line up to 1000 line ) to the clients.specifications as per clients demands.The system presented here can be used for connecting two Exchange in parallel and Switching the phone line of another exchange at thetime of failure of the main exchange.Usually a single telephone Exchange is connected to. If another telephone Exchange is required , a parallel line is taken for connecting theother telephone Exchange. In this simple parallel line operation, the main problem is loss of privacy besides interference from the other phoneline Exchange. This problem is obviated in the Phone line Changeover system presented here.Under normal condition, two telephones Exchange (telephone Exchange 1 and 2) can be used as Exchange while telephone Exchange 1 isconnected to the lines from . In changeover mode, disconnected from Exchange-1 and connects to Exchange 2.