Digital ExtensionThe NEC XN Vision system telephone is a digital telephone designed to work on the NEC XN120 telephone system. It needs to be connected to a digital extension on the NEC system as it can not function on a standard analogue telephone s
Digital ExtensionThe NEC XN Vision system telephone is a digital telephone designed to work on the NEC XN120 telephone system. It needs to be connected to a digital extension on the NEC system as it can not function on a standard analogue telephone s
