How does a DSL connection affect phone line usage?

A Digital Subscriber Line (DSL) connection operates by using the existing copper telephone lines to transmit data. One of the advantages of DSL technology is that it allows for simultaneous voice and data transfer. This means users can access the internet while still being able to make and receive phone calls on the same line without any interference.

This coexistence is made possible because DSL modulates the data signals at a frequency that is higher than that used for traditional voice calls. Therefore, as long as the appropriate filters or splitters are installed to separate the data and voice frequencies, the DSL connection will not disrupt regular telephone service, allowing both to function concurrently.

This feature makes DSL an appealing option for users who need both internet access and phone line capabilities without requiring additional lines or experiencing interruptions during calls.