Editing Leased line (section)

===In the United States===
In the [[Communications in the United States|U.S.]], low-speed leased lines (56&nbsp;kbit/s and below) are usually provided using analog modems. Higher-speed leased lines are usually presented using '''FT1''' ('''Fractional T1'''): a '''[[Digital Signal 1|T1]]''' bearer circuit with 1 to 24, 56k or 64k [[Time-division multiple access|timeslots]]. Customers typically manage their own network termination equipment, which include a Channel Service Unit and Data Service Unit ([[CSU/DSU]]).