FT1 (Fractional T1)

A T1 circuit with some DS-0 channels disabled to provide a fraction of T1 capac-

ity. FT1 generally is tariffed to provide 1, 2, 4, 6, 8, or 12 DS-0 channels. Subrate transmission also is available at speeds of 9.6 kbps. See also DS-0, subrate, and T1.

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• Unbundled Network Elements Platform (UNE-P)
• Unbundled Network Element (UNE)
• unbundled service
• underground cable
• Underwriters Laboratories (UL)
• undocumented feature
• undocumented feature
• (UN/EDIFACT)
• UN/EDIFACT (United Nations/Electronic Data Interchange For Administration, Commerce,
• UNE-P (Unbundled Network Elements-Platform)
• UNE (Unbundled Network Element)
• UNE (Unbundled Network Element)
• unibit
• unicast
• unicast address
• Unicode Consortium
• Unicode Transformation Format (UTF)
• Unicode (Universal code)
• unified communications
• unified messaging
• unified messaging
• unified messaging
• uniform call distributor (UCD)
• uniform dialing plan (UDP)
• Uniform Resource Identifier (URI)