Acronym Guide - F

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FACS - facilities assignment and control system

FANI - flexible automatic number identification

FCC - Federal Communications Commission

FCoE - fiber channel over Ethernet

FD - frame delay

FDV - frame delay variation

FDM - frequency division multiplexing

FEC - forward error correction

FG - feature group

FGA - feature group A

FGB - feature group B

FGC - feature group C

FGD - feature group D

FHCS - frozen high cost support

FID - field identifier

FIFO - first in first out

FILO - first in last out

FIT - federal income tax

FITL - fiber in the loop

Flex ANI - flexible automatic number identification

FM - frequency modulation

FMC - fixed mobile convergence

FNPRM - further notice of proposed rulemaking

FOC - firm order confirmation

FOIA - Freedom of Information Act

FR - Federal Register

FRAC - frame relay access connection

FRAS - frame relay access service

FRIC - frame relay interexchange connection

FRN - funding request number

FRO - fixed rate option

FSP - frame sync polarity

FTC - Federal Trade Commission

FTN - forward to number

FTTB -fiber to the building

FTTC - fiber to the curb

FTTH - fiber to the home

FTTN - fiber to the node

FTTP - fiber to the premise

FTTX - fiber to the X

FUSC - Federal Universal Service Charge

FX - foreign exchange

FY - fiscal year