Its simple. On TalkTalk FTTC services, the DLM is located within the FTTC cabinet which TT (or any other ISP) don't have any control over. However on TalkTalk ADSL2+ services, the DLM is within TT's equipment at the exchange which TT do
have control over. On both FTTC and ADSL2+ TT lines, TT use their own backhaul links from the headend exchange to the internet. The same applies to Sky, Vodafone and to a certain extent Zen FTTC and ADSL2+ lines. With Zen, where they don't have their own equipment at an exchange, BT wholesale (or where possible TT Business) will carry their traffic to the nearest major exchange which does.
FluidOne FTTP On Demand 330/30 Mbps
Netgear Nighthawk X10 running Voxel
Edited by baby_frogmella (Sat 14-Oct-17 15:41:49)