Actually it’s a single pair. It uses VDSL. And the proper term is FTTN though it’s not a cable created term but rather an industry term (one that was first deployed by telcos and not cable). Though FTTC or FTTP can be done. It just needs an IP medium for transport. Verizon doesn’t use coax except for inside the house HPNA use AFAIK. Their FiOS product is 100% PON technology.
VDSL is range dependent for top speed as is all DSL. The upper range is <3.5 kft for a Uverse loop. ADSL2+ is and has always been a 25Mbps technology (<5kft) with bonding options.
Anyone have any questions about DSL tech just freepmail me.
Mine is a double pair. They test the line(s) and use one if possible, but add a box if they need to use two.
Works great! And we CAN watch 4 HD programs at once.
Also, channel surfing is pretty quick and almost as good as cable.
I compared OTA Channel 5 WRAL (1st HD commercial station to go on air and a VERY technically-astute crew) to U-Verse and I could not tell the difference on a 50” Pioneer KURO plasma set.
In some cases AT&T uses a 2nd pair to get the speeds they need, but you are correct, in most cases they are using one pair to the house.
A buddy works for AT&T and they had to do that to his house. He does really big stuff doing backhaul for cell towers and such.