We stock broadband DSL filters and DSL splitters from the innovators and leaders in broadband accessories. Using a filter or splitter will ensure optimal data performance and voice quality by blocking interference between regular phone voice signals and broadband signals, such as DSL, HPN etc. You will need one filter for every phone.

  A DSL filter is an analog low-pass filter installed on telephones and other analog devices to prevent interference between such devices and Digital Subscriber Line (DSL) service operating on the same line. Without the installation of filters, high-frequency signals or echoes from analog devices can result in reduced performance and connection problems with DSL service, and the high-frequency signals from the DSL service can result in line noise and other issues for analog devices.

  By filtering the frequencies at each end of this wide-open range (4 KHz to 2.2 MHz) and isolating them from the voice-bandwidth channel, the local telco can transport both traditional telephone signals and high-speed xDSL signals over the same old four-wire telephone line that already links your home or business to their central office (CO). At least, that’s the promise of xDSL.

  Today, with more than 750 million sites around the world wired for telephone service, the basic infrastructure for xDSL is already in place; each twisted-pair circuit is a veritable high-speed, dedicated pathway just waiting to be activated. Back then, as now, cable modem service challenged xDSL in the beyond-analog broadband market. But the inherent advantages of the widespread copper telco network over CATV coax suggested (and still do) that xDSL is better positioned to deliver more bang for the consumer’s buck—at least in the near future.