Question: what are the difference between t1 and e1 circuit?
Answer: T1 is a digital transmission link with a total transmit and receive rate of 1.544 Mbps (1544000 bits per second). E1 is a digital transmission link with a total transmit and receive rate of 2.048 Mbps (2048000 bits per second). T1 is used in North America and Asia and E1 is used in Europe and Australia.