Specifications: Straight wiring 4 conductors Conductor: copper, wire diameter: 0.4 copper(single) Size: 33FT (+/-0.6FT) Line core: 4 root, wire shield: PVC RJ11 6P4C modular connectors with gold-plated conductors Features: The RJ11 connectors have 4 gold-plated conductors that are corrosion-resistant and reduce both static and outside interference for a seamless connection. It is a ideal phone accessories, and can connect your phone with a RJ11 connection to another RJ11 devices. The phone wire has a variety of possible uses, such as connecting two telephones devices together, connecting a telephone device to a wall jack, or as an extension cord. This phone extension cord allows you to have your phone 33ft away of your phone jack and not having to move every time you need to use your phone. Standard phone connectors on both ends, plug and play ready for fax lines, modems, answering machines, cordless or standard phones. The RJ11 modular straight telephone cord extension wire is used for the home, hotel, office and other telephone systems. Single insulated wire according to the different pitch twisted pair, and with specified color combinations to identify line, reduce the mutual interference between the clues crosstalk, power consumption is small. Scope of application: Telecommunication engineering wiring, links between indoor telephone communication cable system wiring, voice communication system between the main line, program-controlled switches, phone, fax and digital television, choice of Audio, Video, and IT Professionals· With Inline Coupler,Telephone Splitters,3Female Telephone Splitter and20 white adhesive cable clip holders, help those cluttered cables and cords around your desk much nicer, cleaner, and safer. · Designed for superior signal transmission. The cores of wires are made of Pure-copper material, thickness is up to 26AWG, which is much better than ordinary Copper-clad-Steel telephone cord or most telephone cords with thin copper cores on market, And contacts of plugs are coated with thicker gold plate than normal ones on market. Both ensure great connection and conservation quality. Make your phone call and reply more pleasant. · Universally compatible Telephone Handset Extension Cord Cable with all telephones manufacturers including AT&T, Cisco, NEC, Rolm, ITT, & Tie.You can use them as replacements for those and Avaya 5420 and 5610SW IP phones. · Phone line length of 33ft, 6p4c connector. Not applies to VOIP phone and Cat 5 is Category 5 UTP cable, typically used for Ethernet with a 8P8C (RJ45) plug. This is standard telephone cord with RJ-11 for use with landline telephones, fax machines, dial-up modems, etc. · You can use from wall phone line to a telephone. Male RJ11 to male RJ11 Telephone Cables are used for standard RJ11 phones.For use with telephones, fax machines, modems, answering machines, etc.Not work as a Ethernet Cable (Example: internet box to xbox).