T1 access for Linux site

Sorry if this is off topic but it seemed like a good place to ask.When a
T1 is ordered from Qwest and they terminate at the dmarc pint with what
they call is a smart jack iS a CSU/DSU still required or is what they
are providing now a CSU/DSU? Can that be used as a CSU/DSU and a
CSU/DSU is no longer needed to be provided by the customer? I tried
looking on qwest site but I could not locate the answer to my
question.All data communications line whether they are actually order
from MCI or AOL Time Warner are all actually installed by Qwest and
locally maintained is that also correct?


Jim