T-1 Primary Rate Interface (PRI) With a total of 1.536 Mbps
capacity, this link is broken down into 23 channels of 64 Kbps capacity.
Each phone conversation will utilize one channel regardless of how
much of the 64 Kbps is actually used.Therefore, one T-1 PRI can host
23 conversations simultaneously.This type of connection costs between
$28 and $60 per channel depending upon the provider you use, given
that you’re getting business class of service and circuit stability.