Explore topic-wise fullforms in Computer and Networking

INFO: Full form for TRWST is Technical Requirements Wireless Terminals in Computer and Networking category

INFO: Full form for TSB is Telecommunications Systems Bulletin (TIA) in Computer and Networking category
TSB also has other full forms in other categories mentioned below.

INFO: Full form for TSB is Telecommunications Standardization Board (ITU) in Computer and Networking category
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INFO: Full form for TIPHON is Telecommunications and Internet Protocol Harmonization Over Networks (ETSI TC) in Computer and Networking category
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INFO: Full form for UCAN is User Circuit mode Access to Network (T1S1) in Computer and Networking category
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INFO: Full form for TRIC is TIA Regulatory Issues Committee in Computer and Networking category
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INFO: Full form for UDLC is Universal Digital Loop Carrier in Computer and Networking category
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INFO: Full form for UIH is Unnumbered Information with Header check in Computer and Networking category
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INFO: Full form for UMV is Unrestricted Motion Vector (H.263) in Computer and Networking category
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INFO: Full form for TIWG is Testing & Interoperability Working Group in Computer and Networking category
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INFO: Full form for UAP is Unified Accelerated Procedure in Computer and Networking category
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A SIM card, also known as subscriber identity module or subscriber identification module (SIM), is an integrated circuit running a card operating system (COS) that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony devices (such as mobile phones and computers). It is also possible to store contact information on many SIM cards. SIM cards are always used on GSM phones; for CDMA phones, they are needed only for LTE-capable handsets. SIM cards can also be used in satellite phones, smart watches, computers, or cameras.

The SIM circuit is part of the function of a universal integrated circuit card (UICC) physical smart card, which is usually made of PVC with embedded contacts and semiconductors. SIM cards are transferable between different mobile devices. The first UICC smart cards were the size of credit and bank cards; sizes were reduced several times over the years, usually keeping electrical contacts the same, so that a larger card could be cut down to a smaller size.

A SIM card contains a unique serial number (ICCID), international mobile subscriber identity (IMSI) number, security authentication and ciphering information, temporary information related to the local network, a list of the services the user has access to, and two passwords: a personal identification number (PIN) for ordinary use, and a personal unblocking key (PUK) for PIN unlocking. In Europe, the serial SIM number (SSN) is also sometimes accompanied by an international article number (IAN) or a European article number (EAN) required when registering online for the subscription of a prepaid card.

INFO: Full form for VADSL is Very high speed ADSL in Computer and Networking category

INFO: Full form for TRL is Transmit Loudness Rating in Computer and Networking category
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INFO: Full form for VCC is Virtual Channel Connection in Computer and Networking category
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INFO: Full form for uPnP is Universal Plug and Play Forum in Computer and Networking category
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The Office of the United States Trade Representative (USTR) is an agency of the United States federal government responsible for developing and promoting American trade policy. Part of the Executive Office of the President, it is headed by the U.S. Trade Representative, a Cabinet-level position that serves as the U.S. President's primary advisor, negotiator, and spokesperson on trade matters. USTR has more than two hundred employees, with offices in Geneva, Switzerland, and Brussels, Belgium.

USTR was established as the Office of the Special Trade Representative (STR) by the Trade Expansion Act of 1962, leads trade negotiations at bilateral and multilateral levels, and coordinates trade policy with other government agencies through the Trade Policy Staff Committee (TPSC) and Trade Policy Review Group (TPRG). Its areas of expertise include foreign direct investment, commodity agreements, trade-related intellectual property protection, and trade disputes before the World Trade Organisation. Based in Washington, D.C., Katherine Tai is the current United States Trade Representative.

INFO: Full form for UUIE is User-to-User Information Element in Computer and Networking category

INFO: Full form for VC-RDI is Virtual Circuit-Remote Detect Indicator in Computer and Networking category

INFO: Full form for VBD is Voice Band Data in Computer and Networking category
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INFO: Full form for UWCC is Universal Wireless Communications Consortium in Computer and Networking category
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INFO: Full form for VCELS is Vertical Cavity Surface Emitting Laser in Computer and Networking category

INFO: Full form for TSSC is Technical Standards Subcommittee (TIA) in Computer and Networking category
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INFO: Full form for UQ is Utility Quality in Computer and Networking category
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INFO: Full form for TCB is Telecommunications Certification Bodies in Computer and Networking category
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INFO: Full form for ULM is Unified Management Framework in Computer and Networking category
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INFO: Full form for xoIP is FoIP, MoIP, VoIP in Computer and Networking category
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INFO: Full form for VoMSDN is Voice over Multi-Service Data Networks in Computer and Networking category

INFO: Full form for XTI is X-open Transport Interface in Computer and Networking category
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INFO: Full form for using is Passive Monitoring in Computer and Networking category

The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard. Developed and maintained by the 3GPP (3rd Generation Partnership Project), UMTS is a component of the International Telecommunication Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators.

UMTS specifies a complete network system, which includes the radio access network (UMTS Terrestrial Radio Access Network, or UTRAN), the core network (Mobile Application Part, or MAP) and the authentication of users via SIM (subscriber identity module) cards.

The technology described in UMTS is sometimes also referred to as Freedom of Mobile Multimedia Access (FOMA) or 3GSM.

Unlike EDGE (IMT Single-Carrier, based on GSM) and CDMA2000 (IMT Multi-Carrier), UMTS requires new base stations and new frequency allocations.

INFO: Full form for VTS is Voice Tone Support in Computer and Networking category
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INFO: Full form for WFOM is Wait for Overhead Message in Computer and Networking category

Working Group may refer to:

INFO: Full form for WOT is World Ordering Team (TeleManagement Forum) in Computer and Networking category
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INFO: Full form for xDSL is All the different Digital Subscriber Line technologies in Computer and Networking category
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INFO: Full form for XIWT is Cross-Industry Working Team in Computer and Networking category

INFO: Full form for WTSA is World Telecommuncations Standardization Assembly (ITU) in Computer and Networking category
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INFO: Full form for WUPE is Wireless User Premises Equipment (TR-41.6) in Computer and Networking category
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INFO: Full form for ZLP is Zero Loss Plan in Computer and Networking category
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INFO: Full form for USOC is Uniform Service Order Codes in Computer and Networking category
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INFO: Full form for WTPF is World Telecommunication Policy Forum (ITU) in Computer and Networking category
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INFO: Full form for VTQME is Voice Transmission Quality Mouth to Ear (ETSI) in Computer and Networking category

INFO: Full form for xTU-R is All the different Transceiver Units - Remote in Computer and Networking category

INFO: Full form for WMOPS is Weighted MOPS in Computer and Networking category

INFO: Full form for V&V is Validate and Verify in Computer and Networking category
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INFO: Full form for WTLR is Wireless Terminal Location Registration in Computer and Networking category
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INFO: Full form for VTU-R is VDSL Transceiver Unit - Remote Terminal in Computer and Networking category

INFO: Full form for VBRrt is Variable Bit Rate real time in Computer and Networking category

Asynchronous Transfer Mode (ATM) is a telecommunications standard defined by ANSI and ITU (formerly CCITT) for digital transmission of multiple types of traffic, including telephony (voice), data, and video signals in one network without the use of separate overlay networks. ATM was developed to meet the needs of the Broadband Integrated Services Digital Network, as defined in the late 1980s, and designed to integrate telecommunication networks. It can handle both traditional high-throughput data traffic and real-time, low-latency content such as voice and video. ATM provides functionality that uses features of circuit switching and packet switching networks. It uses asynchronous time-division multiplexing.

In the OSI reference model data link layer (layer 2), the basic transfer units are generically called frames. In ATM these frames are of a fixed (53 octets or bytes) length and specifically called cells. This differs from approaches such as IP or Ethernet that use variable sized packets or frames. ATM uses a connection-oriented model in which a virtual circuit must be established between two endpoints before the data exchange begins. These virtual circuits may be either permanent, i.e. dedicated connections that are usually preconfigured by the service provider, or switched, i.e. set up on a per-call basis using signaling and disconnected when the call is terminated.

The ATM network reference model approximately maps to the three lowest layers of the OSI model: physical layer, data link layer, and network layer. ATM is a core protocol used in the SONET/SDH backbone of the public switched telephone network (PSTN) and in the Integrated Services Digital Network (ISDN), but has largely been superseded in favor of next-generation networks based on Internet Protocol (IP) technology, while wireless and mobile ATM never established a significant foothold.