IXC (IntereXchange Carrier, or IEC)

A company providing long haul telephone service between

local exchange carriers (LECs), that is, local telephony companies (telcos) or other providers of local telephone service. See also carrier, LATA, LEC, and long haul circuit.

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• fax-on-demand (FOD)
• Fax over Internet Protocol (FoIP)
• Fax over Internet Protocol (FoIP)
• fax relay
• fax spoofing
• FCC
• FCC (Federal Communications Commission)
• FC (Fibre Channel)
• FC/IP (Fibre Channel over Internet Protocol)
• FCS (Frame Check Sequence)
• FDD (Frequency Division Duplex)
• FDDI (Fiber Distributed Data Interface)
• FDMA (Frequency Division Multiple Access)
• FDM (Frequency Division Multiplexing)
• FDX (Full DupleX)
• FDX (Full DupleX)
• FDX (Full DupleX)
• Feature Group (FG)
• FEC
• FECN (Forward Explicit Congestion Notification)
• Federal Communications Commission (FCC)
• Federal Trade Commission (FTC)
• Feeder Fiber
• femtocell
• femto- (f)