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A telephone cable comprises a large (up to 3,600 and more) number of pairs of insulated copper conductors having diameters from 0.3 to 0.9 mm that are twisted into groups of two (two-pair stranding) or four (four-pair stranding). These are mainly used for Landline Telephones & EPBX purpose. PVC  Armoured Cable is a hard-wearing power cable designed for the supply of mains electricity.So buy telephone cables online at best quality and best price.