ATIS Telecom Glossary
Tuesday, September 30, 2014

A B C D E F G H I
J K L M N O P Q R
S T U V W X Y Z  
Go
 
Glossary Home
Foreword
Introduction
Normative References
Using the ATIS Telecom Glossary
Annex A: Informative References
 
 
 
Search Keyword: U
  • U interface
  • unsuccessful call attempt
  • U reference point
  • untrusted process
  • UDDI
  • unused character
  • UDP
  • unwanted current
  • UE
  • unwanted voltage
  • UHF
  • UOM
  • UI
  • up-converter
  • UICC
  • UPB
  • Uimsbf
  • update
  • ULF
  • updating
  • ultra high frequency (UHF)
  • Upgrade
  • ultra low frequency (ULF)
  • Upgrade
  • ultraviolet (uv)
  • uplink (U/L)
  • ultrawideband
  • UPnP
  • UML
  • upright position
  • UMTS
  • UPS
  • unallowable character
  • UPSF
  • unassigned cell
  • upstream
  • unauthorized disclosure
  • UPT
  • unavailability
  • UPT access code
  • unbalanced line
  • UPT access number (UPTAN)
  • unbalanced modulator
  • UPT database
  • unbalanced wire circuit
  • UPT environment
  • unbound mode
  • UPT indicator
  • unbundling
  • UPT number
  • unclassified
  • UPT routing address
  • underflow
  • UPT service profile
  • underground cable
  • UPT service profile management
  • underground plant
  • UPT subscriber
  • underlap
  • UPT user
  • undershoot
  • UPT user group
  • undesired signal
  • uptime
  • undetected error rate
  • URI
  • undetected error ratio
  • URL
  • undisturbed day
  • URL (uniform resource locator)
  • unequipped indication
  • URN
  • unexpected frame
  • usable line length
  • UNI
  • usage
  • UNICOM station
  • USB
  • UNICORE
  • useful line
  • unidirectional
  • Usenet
  • unidirectional channel
  • user
  • unidirectional operation
  • user agent (UA)
  • unidirectional path
  • user channel
  • uniform encoding
  • User Datagram Protocol (UDP)
  • uniform linear array
  • user ID
  • uniform quantizing
  • user identification
  • uniform time scale
  • user identity module (UIM)
  • uniform transmission line
  • user information
  • uniform-spectrum random noise
  • user information bit
  • unilateral control system
  • user information block
  • unilateral synchronization system
  • user interface convergence
  • unimode fiber
  • user line
  • unintelligible crosstalk
  • user overhead information
  • unintentional interference
  • user part
  • uninterruptible power supply (UPS)
  • user privacy
  • unipolar signal
  • user profile
  • unique key
  • user representative
  • unit element
  • user service class
  • unit impulse
  • user-network interface (UNI)
  • unit interval
  • user-provided number (UPN)
  • unit-distance code
  • USIM
  • universal digital loop carrier
  • UT
  • Universal Personal Telecommunications (UPT) service
  • UTC
  • universal personal telecommunications number
  • UTC(i)
  • universal service
  • utility load
  • Universal Time (UT)
  • utility program
  • UNIX
  • utility routine
  • unnumbered command
  • Utilization Level
  • unnumbered information (UI) frame
  • UTRA
  • unnumbered response
  • uudecode
  • unpark
  • uuencode
  • unprivileged subject
  • uv
  • unstructured text
  • UWB
  • unsuccessful call


  •  
    These definitions were prepared by ATIS Committee PRQC
     
    For more information on the work related to these definitions,
    please visit the ATIS website and the ATIS Document Center