Our RG6 or RG59 coaxial cable and phone wall plate should be used for professional installation of a RG6 or RG59 coaxial cable and telephone line wall outlet. The 4 wire telephone jacks work with all 2 or 4 wire systems. The wall plate mounts to standard electrical outlet box or flush mounts to drywall, and can be used for 1 or 2 modem or phone and fax line.