IP-enabled PBX (Internet Protocol-enabled Private Branch eXchange)

A PBX that couples

VoIP (Voice over Internet Protocol) onto a conventional PBX based on time division multiplexing (TDM). The intelligent IP phones can take the form of either hardphones or softphones that connect either over a switched Ethernet LAN. The LAN-attached data terminals interconnect as usual. The IP

phones connect to the PBX through an Ethernet port on a line card that includes an IP gateway that resolves the interface issues between the TDM bus and the switched Ethernet LAN that supports VoIP.

Calls between the LAN-attached IP phones are conducted on a peer-to-peer basis using their LAN

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• FATE (Frame-based ATM Transport over Ethernet)
• fatware
• fault management
• fax emulation
• fax (facsimile)
• fax-on-demand (FOD)
• 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