These "Special" RJ11 cables are simply the same as normal ones with higher quality wire. It does make a difference to your connection speed so if you're getting a slow connection speed, Try an "ADSL" RJ11 cable.
so It's not bull, but if you have good cabling anyway might not make a difference to you. Also, listen to what Seb said :)
so It's not bull, but if you have good cabling anyway might not make a difference to you. Also, listen to what Seb said :)