DSL PHONE LINE FILTER

personal, home, and business telecommunication devices; accessories and equipment for digital subscriber lines (DSL) and t 1 h e ep one lines; equipment for use in optimizing the performance of telephone line-based computer networks; equipment for use in sharing home phone- line networks (HPNA); equipment for use in allowing different communication frequencies to share a telephone line; equipment for use in connecting to local, wide area, and global networks