Leased lines are commonly referred to as dedicated connectivity
options. This means that the connection between the two
endpoints is permanent in nature and that 100 percent of the
capacity is available to the end user. Leased lines are owned by
the telecommunications carrier and are often provided in the
form of a T-1. These connections are also called point-to-point
links because the capacity of a leased line is dedicated to the
corporation. Unfortunately, because bandwidths cannot be shared,
this type of connection is more expensive than Frame Relay or
ATM. In addition, leased lines are also distance sensitive.
Unlike Frame Relay, with leased lines, the telephone company
will charge the end user for both the local loop and the transit
network. For short distances, the differences in costs might be
negligible, but for long distances, the costs increase
dramatically. For example, a 200-mile Frame Relay connection
might cost $200 a month, which would be the same as a 2,000-mile
Frame Relay connection. The lea