Patent ID: 7190786

Claim:
A telephone comprising: a housing; POTS circuitry disposed within the housing for establishing telephone calls; a location within the housing adapted to engage a filter cartridge, the location including an electrical connector for the POTS circuitry; a filter cartridge adapted to be inserted into the location and including a first end and second end, the first end being inserted into the location; the first end including at least one electrical connector for engaging the corresponding electrical connector for the POTS circuitry disposed in the location; the second end including at least one first connector for receiving a DSL line and at least one second connector for receiving a telephone line, wherein the second end is configured to accept the DSL line and the telephone line simultaneously; and wherein the filter cartridge comprises a block to receive a signal through the at least one second connector of the second end that contains both DSL and POTS signals and to split the signal, and a filter to filter the signal so as to pass substantially only the POTS signal to the at least one electrical connector of the first end, and to simultaneously pass the DSL signal to the at least one first connector of the second end for receiving the DSL line.