Telephone cable 2 LSFH pairs. The 2-pair telephone cable is Category-3 compliant, which allows it to reach transmission frequencies up to 16MHz, with a transfer rate up to 10Mbps. This type of data cables (telephony) is used in generic telephone installations. . Solid copper inner conductor (24AWG). PE (Polyethylene) copper conductor insulation. Equipped with a ripcord for an easy opening. White-colour LSFH (Low Smoke Free of Halogen) outer sheath, 0.7mm thick. Supplied in a 250m box dispenser..