RCA makes it easy to do your own professional phone jack installation. The 4 wire telephone jack works with all 2 or 4 wire systems. The ivory colored wall plate mounts to a standard electrical outlet box or flush mounts to drywall. Connects to phone wire and mounts a modular phone jack on your wall Allows use of standard phone connector Four wire system works with all two or four wire systems Mounts to standard electrical outlet box or flush mounts to drywall Almond finish Flush mounted jack for replacement & pre-wire use.