e bandwidth can be increased to provide speeds even higher. Coaxial cable run about 400 Mbps and is fairly inexpensive. Fiber is often compared to coaxial cable, however fiber has many advantages over coaxial cable. Fiber optic cable operates at more than twice the rate as coaxial cable. So, depending on whether speed is necessary or cost is an option there are other alternatives when leasing a line from a common carrier.Usually leased lines are referred to as dedicated lines but they also can be nondedicated which means the customer only makes connections when needed. These can also be referred to as "fractional lines". For example a fractional T1 line, allows a customer to use the T1 line only when needed. This saves money for companies who only need partial connection time. Another alternative to these methods if only a portion of the line needs to be used is just using a dialup line. In the LAN Times Encyclopedia of Networking, it states that a good example of using a dialup line is when the only thing being transferred is e-mail. The e-mail accumulates until it has enough to make a call (519).An example where leased lines may be more beneficial than using frame relay could be an instance of a central company in Atlanta, GA needing to communicate with another site in Athens, GA (approximately 5 miles). This communication needs to be established throughout the day and it needs to be speeds at least 1.2 Mbps. The reason why a leased line would be most beneficial for this situation is the fact that the connection has to be established throughout the day, forcing a leased (dedicated) line to be used.Frame relay and leased lines interconnect with each other to transmit data from one station to another. Leased lines provide some of the physical connections while using frame relay. Data in frame relay is transmitted through a "cloud" and data over a leased line is transmitted over a physical connection that actually connects ...
