I deployed only one Cat-5 cable from my living room to my study, and the blue pair was used for the telephone, because I place the ADSL modem in the study, most of time, I surf the Internet at the study.

 

Recently, my wife wanna use the Internet connection also, we draw another Cat-5 cable from the study to the living room, it's terrible, we often step upon the cable, the cable make our room chaotic, I decide to make some changes.

 

Two options, the first one is to use a wireless device like wireless router or AP to replace the cable. we need to buy a router and a wireless adapter for my wife's laptop, the signal may be weak and not stable. the second one is use the Cat-5 cable in the wall to transfer the telephone signal and the network signal at the same time. it's much easier to implement, so I try the second option first.

 

Cut the cable which we used to transport network signal into bisection, connect these two sections to the Cat-5 cable in the wall, the blue pair was used by the telephone, I use the orange pair and green pair for ethernet signal transport.

 

Test the connection after I finished the wiring, it works very well.