\\ More than 3500 Telecom abbreviations maintained by Ioan (Nini) Indreias // 1 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 All words VAD Voice Activated Dialing VAD Voice Activity Detector (GSM) VAN Value Added Network VAN Value-Added Network VANC Voice Activated Network Control VANS Value Added Network Service VAP Value-Added Process VAPD Voice Activated Premier Dialing VAS Value-Added Services VAX Virtual Address Extension (DEC) VAXen Two or more VAXes VAZO Violating All-Zero Octet VBNS Very High-speed Backbone Network Service VBR-NRT Variable Bit Rate-Non-Real-Time (ATM) VBR-RT Variable Bit Rate-Real-Time (ATM) VBR Variable Bit Rate VBR Variable Bit Rate (ATM) VC Virtual Channel (ATM) VC Virtual Circuit (PSN) VC Virtual Connection VC Virtual Container (SDH) VCA Value Card Application VCC Virtual Channel Connection (ATM) VCI Virtual Channel Identifier VCI Virtual Circuit/Channel Identifier VCL Virtual Channel Link VCM Virtual Channel Memory VCR Video Cassette Recorder VCS Video Conferencing System VCS Virtual Circuit Switch VCS Voice Control Systems VDM Voice Data Mux VDSL Very high bit rate Digital Subscriber Line VDT Video Dial Tone VDU Visual Display Unit VE Virtual Environment VESP Video Enhanced Service Providers VF Voice Frequency VFG Virtual Facility Group VFL Voice Frequency Line VG Voice Grade VGA Video Graphics Array VHDCI Very High Density Cable Interconnect VHDSL Very High bit rate Digital Subscriber Line VHE Virtual Home Environment VHF Very High Frequency VI Vector Identifier VICS Voluntary Interindustry Communications Standards for EDI VIN Virtual Intelligent Network VINES Virtual Networking System (Banyan) VIP Versatile Interface Processor (Cisco) VIP VINES Internet Protocol VIP Virtual IP VL Vector Length VLAN Virtual Local Area Network VLBR Very Low Bit Rate VLF Very Low Frequency VLR Visiting Location Register VLR Visitor Location Register (GSM - UMTS) VLSI Very Large Scale Integration VM Virtual Machine VM Virtual Memory VME Versa Module Europe VMI Visual Message Indicator VMR Virtual Media Resource VMS Virtual Memory System VMS Virtual Memory System (DEC) VMWI Visual Message Waiting Indicator VN Virtual Network VNL Via Net Loss VNS Virtual Network System VoATM Voice Over ATM VoB Voice Over Broadband VOD Video On Demand VoDSL Voice Over DSL VOFDM Vector Orthogonal Frequency Division Multiplexing VoFR Voice Over Frame Relay VoiceXML Voice XML VoIP Voice Over Internet Protocol VOIP Voice Over Internet Protocols VoIP Voice over IP VON Voice On the 'Net VOP Voice Over Packet VP Vice President VP Virtual Path VPC Virtual Path Connection VPC Virtual Permanent Circuit VPC Virtual Private Circuit VPDN Virtual Private Dial-up Network VPI Virtual Path Identifier VPIM Voice Profile for Internet Mail VPN Virtual Private Network VPO Vantage Point Operations VPT Virtual Path Terminator VPX Virtual Path Cross-connect VQC Vector Quantizing Code VQC Voice Quantizing Code VQL Variable Quantizing Level VQL Vector Quantizing Level VQN Variable Quantizing Network VR Virtual Reality VR Voice Response VRAM Video RAM VRAM Video Random Access Memory VRC Vertical Redundancy Check VRML Virtual Reality Modeling Language VRU Voice Response Unit VSAM Virtual Storage Access Method VSAT Very Small Aperture Satellite VSAT Very Small Aperture Terminal VSAT Voice over Satellite VSB/AM Visual Side Band Aperture Modulation VSB Vestigial Sideband VSC Cisco's Virtual Switch Controller VSELP Vector Sum Excited Linear Prediction VSMSC Virtual SMSC VSP Video Service Provider VT Virtual Terminal (ISO) VT Virtual Tributary VTAM Virtual Telecommunications Access Method (SNA) VTAM Virtual Terminal Access Method VTE Virtual Terminal Environment VTP Virtual Terminal Protocol (ISO) VU Volume Unit VXML Voice Extensible Markup Language VXML Voice XML VxVM Veritas Volume Manager SMBZ - SaMBoZaur - test for propagation of define: