I bought 20 meters of 4c cable in order to replace existing phone ones (voice only). The reason why is that I want to place some new phone RJ11 plugs.
But I don't know if I can place inside the existing cable channels (where existing cables do reside) alongside the existing power cables as well.
The alternate approach is to place it externally, but it is ugly looking.
So should, is it recommended, to place it alongside the electric cables or not?