How does DSL support both voice and data on the same line?
A device called a “splitter” assigns voice and data transmissions to different frequencies. Digital bits travel on the inaudible frequencies of your phone line. That keeps them separate, and that’s why all the signals – voice and data – can work in parallel without colliding with each other. A DSL modem spreads signals over many frequencies on the line, carrying many times more information than an analog dial-up modem.
A device called a “splitter” assigns voice and data transmissions to different frequencies. Digital bits travel on the inaudible frequencies of your phone line. That keeps them separate, and that’s why all the signals – voice and data – can work in parallel without colliding with each another. A DSL modem spreads signals over many frequencies on the line, carrying many times more information than an analog dial-up modem.
