The One Data - One Voice Line Economiser is designed to increase the nmber of spare high data lines availiable in existing Category 3, Category 5 and Category 5E structured cabling systems, without the need for new cable runs. This allows two signals to share a single cable, one voice and one low speed data. The economiser sets comprise a line splitter and line combiner unit. Take careful note of the function of each jack i.e. Voice or Data.