A T1 signal can travel much further than ISDN and HDSL signals can.

Question

Quizplus · Accepted Answer

T1, ISDN, and HDSL are all types of digital transmission technologies, and their ability to travel long distances without significant signal degradation is more a function of the repeaters and signal regeneration equipment used rather than the inherent capability of the technology itself. However, HDSL (High bit-rate Digital Subscriber Line) is specifically designed to carry high-speed data over existing copper telephone lines for relatively long distances compared to traditional ISDN (Integrated Services Digital Network), which is not specifically optimized for long distances without repeaters.

A T1 Signal Can Travel Much Further Than ISDN and HDSL