What types of devices need to be filterted?
If you have more than five devices connected to your phone line with filters, you may start to notice some degradation in your DSL connection. When you have more than five devices using your phone line, you begin to put a strain on the overall signal, reducing strength and quality. You will likely not notice any change in performance for many devices, such as your phone, however, your DSL signal may be weakened, resulting in slower speeds.
If you notice a performance issue with your DSL connection, and have more than five devices using your phone line, try unplugging some to decrease the load on your phone line to help reduce the strain on your DSL signal.