What is a T1? A T1 is a high-speed digital circuit that can be used for voice, data or both. The T1 transmits at a high speed, up to 1.544 Mbps, which is faster than many modems. The T1 consists of 24 channels and is typically used for businesses. The circuit is delivered on fiber but can sometimes come to the premise on copper wires. It is engineered to provide the proper speed and performance based on your location and proximity to the nearest telephone central office. How does a T1 work? A T1 is an engineered circuit that is connected specifically for your company location. It uses 3 pair of fiber for connection. The circuit comes into your premise and is terminated onto a smart jack. From there it can be extended into your telephone system. A T1 has 24 channels that are flexible for use by everyone. When a channel is idle it is available. This makes the T1 able to be used by many people. A typical T1 can support between 50 and 100 users. The T1 is accessed by your telephone system through specific programming instructions that are written into your system. When a long distance number is dialed the telephone system will route the call over the T1.A T1 can be used for both incoming and outgoing calls. Your main number can be routed over the T1 to allow for more simultaneous calls. DIDs (direct inward dial) numbers can be used on a T1. DIDs are direct numbers that can be associated with specific phone users on your system and act as private lines.
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