HDSL2 technology (2-wire) (whether it be Adtran or ADC the most common equipment manufactures) is just as reliable as a 4-wire T1 delivery method. As a matter of fact it’s MORE reliable than say transmitting and receiving DSX format over copper spans as was done years ago.
This is not like ADSL what so ever in that the bandwidth is synched and locked at 1.544 Mbps transmit and receive. You WILL NOT have bandwidth capacity issues with it. If the T1 can not run at 1.544 Mbps it has lost synch and it’s down.
A T1 is still a 4-wire service as far as billing and tariff goes as well… There’s a 4-wire interface on the customer side of the H2TU-R and it DOES operate “full-duplex†over the one pair of wires.
