I've read here about VDSL circuits connected directly to the CO (not through a VRAD) that can achieve 50+Mbps speeds, using a singe-pair wire loop. Yet the FTTN Fusion customers who want better than ~20Mbps have to do so by provisioning a second loop as part of the X2 service.
Setting aside the pricing tiers for faster service as delivered over Uverse, why can't AT&T simple 'open the spigot' on a single-pair connection if the customer wants a higher speed (and is close enough to the VRAD)? It seems like a waste of resources to use a second wire loop and bonded modem when, as far as I can tell, the single loop should, in many cases, be capable of a higher speed on its own.
Setting aside the pricing tiers for faster service as delivered over Uverse, why can't AT&T simple 'open the spigot' on a single-pair connection if the customer wants a higher speed (and is close enough to the VRAD)? It seems like a waste of resources to use a second wire loop and bonded modem when, as far as I can tell, the single loop should, in many cases, be capable of a higher speed on its own.