1.544 Mbps
T1 is symmetrical connection, allowing for downloads and uploads of up to 1.5 Mbps - 30 times as fast as 56k dial-up. A single T1 connection can support dozens to hundreds of users, but speed and efficiency drops as more people use it simultaneously.
A T1 is copper, and OC3 is fiber optic, so there is no way to make a T1 into OC3. Speed on a T1 is 1.544 Mbps, and speed on the OC3 is 155.52 Mbps, so in rounding, you need 100 T1 lines to equal the speed of an OC3.
DS3 is 44.7 Mbps and a T1 is 1.55 Mbps. So 1 DS3 = 28 T1s http://www.dslbroker.com/ds3.html
T1 line
1.544 Mbps (Megabits per second).
T1 usage is for Voice or Data. T1 is 23 Voice Trunks or 1.5 Mbps. Can be channelized to do both at the same time. www.intelletrace.com
Both T1 and T3 are standard digital telephone carriers. They are designed to multiplex voice channels. T1 has a data rate of 1.544 Mbps and T3 has a data rate of 44.736 Mbps. So the answer is t3.
Type: Cost: T1 (1.544-Mbps serial link) 64
The speed of a T1 line is 1.544 Mbps. It is used to transmit data over the Internet or for voice communications. Faster speeds and capacities are obtained through the the deployment of bonded T-1.
T1 line
In North American a T1 line carries signals at 1.544 Mbps (24 channels at 64Kbps). E1 is the European format for digital transmission. E1 carries signals at 2 Mbps (32 channels at 64Kbps, with 2 channels reserved for signaling and controlling). T1 and E1 lines may be interconnected for international use.