| UN |
United Nations
|
| UNE |
Unbundled network element
|
| UNH-IOL |
University of New Hampshire-Interoperability Laboratory
|
| UNI |
User network interface
|
| UNII |
Unlicensed National Information Infrastructure
|
| UOL |
Unbundled optical loop
|
| UPC |
Uplink Power Control /Usage parameter control
|
| UPI |
User personal identification
|
| UPSR |
Unidirectional Path-Switched Ring
|
| URI |
Uniform Resource Identifier
|
| URL |
Universal Resource Locator
|
| USART |
Universal Synchronous/asynchronous Receiver/Transmitter
|
| USB |
Universal Serial Bus
|
| USIF |
Universal Serial Interface
|
| USTA |
United States Telephone Association
|
| Utopia |
Universal Test and Operations Interface for ATM
|
| UTRA |
UMTS Terrestrial Radio Access
|
| UTS |
Universal Telephone Service
|
| UWB |
Ultra-Wideband
|
| UWB SRR |
Ultra Wideband Short Range Radar
|
| V&H |
Vertical and Horizontal
|
| VAD |
Voice Activity Detector
|
| VAN |
Value added network
|
| VAR |
Value added reseller
|
| VAS |
value added service
|
| VASP |
value added service provider
|
| VBNS |
Very high speed backbone network service
|
| VBR |
Variable Bit Rate
|
| VBR-nrt |
Variable Bit rate Non Real Time
|
| VBR-rt |
Variable Bit Rate-real time
|
| VC |
Venture Capital
|
| VCC |
Voice Call Continuity
|
| VCI |
Virtual Channel Identifier
|
| VCLEC |
Voice CLEC
|
| VCO |
Voltage-Controlled Oscillator
|
| VCR |
Videocassette Recorder
|
| VCSEL |
Vertical Cavity Surface-Emitting Laser
|
| VCTCXO |
Voltage Controlled Temperature Compensated Crystal Oscillator
|
| VCXO |
Voltage-Controlled Crystal Oscillator
|
| VD |
Visited Domain
|
| VDM |
Value Delivery Model
|
| VDSL |
Very High Data Rate DSL
|
| VeDSL |
Voice enabled DSL
|
| Verilog-A |
Hardware modeling language
|
| VGA |
Video Graphics Array
|
| VGW |
Voice Gateway
|
| VHDL-AMS |
Verh High Speed Integrated Circuit Hardware Description Language
|
| VHE |
Virtual Home Environment
|
| VHS |
Video Home System
|
| VITA |
Virutal Integrated Transport and Access
|