Or in the case of *some* people BRI lines. The regulated cost per month for
PRI services varies by state. In my state a PRI (23B-data and 1D-channel) is
$1600 per month. I can buy BRI (2B+1D channels) for less. I get 12 BRI
(24B+12D) for $600 per month. That is a savings of $12000 per year or the
cost of a PM3.
Once they are setup, BRI work great. I use USR Netservers. These have 16
channels and use 8 BRI. They cost $5k each. I have no more problems than I
hear people with PM3 or total control units have.