A T1 line's cost may vary depending on the location of the
installation and depending on who provides the service. Usually
T1 lines can range from $500 to $2000 a month depending on
what type of service you are looking ordering. Most often
than not the T1 lines prices rely heavily on how far you are
from ISP's POP (point of presence) or CO (central office).
For Voice T1 lines there may be additional charges by the
minute on top of your monthly bill. However, there are now
services available that gives you unlimited minutes for a
set monthly rate.