ABSTRACT
HDSL is not even the final word on improving the throughput of the last mile. Asymmetrical digital subscriber line technology (ADSL) supports throughput as high as 8Mbits/sec in a single direction, with a much lower throughput-perhaps as low as 64Kbits/sec-in the other direction. In a perfect-or at least competitive-world, where customers pay for a telephone service based on the actual cost of delivering that service, a high percentage of analog telephone customers could receive ISDN PRI (or another T1 service) at a price comparable to today's cost for ISDN BRI.
