What is SBC DSL and how does it work?

SBC DSL, or Digital Subscriber Line, is an internet service provided by SBC Communications. It delivers high-speed internet access over existing telephone lines, without interfering with voice calls. SBC DSL uses a technique called multiplexing, which allows data and voice signals to travel simultaneously through the same line. When a user connects their modem to the phone jack, DSL transmits internet data using high-frequency signals that can be separated from voice signals. This way, users can utilize the internet while making phone calls simultaneously. SBC DSL provides users with a dedicated connection, ensuring faster speeds compared to traditional dial-up connections. The service also offers different speed options, allowing users to choose a plan that meets their specific internet needs.