Product Description SJ-L-DSL consists of one transmitter and one receiver, which can
transmit network signal as long as 6,000 meters via twisted pair
cable, telephone line and coaxial cable. And the maximum bandwidth
can be up to 148Mbps. It could transmit network signal and also
simultaneously transmit telephone signal (Need for connecting
additional splitter). So you can use the existing telephone lines
for network signal transmission.