Please select the first letter of the glossary term sought:
AllAll with definition
- Amateur radio
- Experimental technical radio service with certificate of competence on bands, some exclusively allocated, in the entire frequency spectrum.
- Amateur radio
- Experimental technical radio service with certificate of competence on bands, some exclusively allocated, in the entire frequency spectrum.
- Aereonautical radio
- Includes all radio services for civil aviation radio services, such as flight safety, airline aircraft, private planes and gliders, balloons and hang gliders.
- Asymmetrical Digital Subscriber Line
- Picture or audio signals are converted into electromagnetic oscillations and then broadcast using frequencies (or via cables).
- ADMD (Administration Management Domain)
- Administration Management Domains (ADMDs) manage smaller units of a Message Handling System (MHS). They provide message transfer services for other supply areas. The International Telecommunication Union (ITU) is responsible for public management domains (ADMD). ADMD names are names of providers of X.400/ISO 10021 messaging services.
- Addressing resources
- Communication parameters and numbering elements such as code numbers, subscribers' telephone numbers and short numbers.
- BWA (WiMAX)
- WiMAX (which stands for Worldwide Interoperability for Microwave Access) is one of these broadband radio access technologies grouped together under the name BWA (Broadband Wireless Access). The documents published under this heading provide a brief description of these technologies and a list of frequently asked questions.
- Bluetooth technology is an open standard which enables voice and data transmissions to be established between computers and their peripherals and with all types of electronic equipment via a short-range radio link.
- A Swisscom subsidiary mandated
to collect radio and television licence fees.
- Citizens' band radio
- Licensed 40-channel short-distance radio service for general use in the 27 MHz range.
- European Conference of Postal and Telecommunications Administrations.
- Call-by-call (or manual) carrier selection
- Federal Communications Commission.
- Conformity assessment procedure
- Conformity assessment procedures determine whether telecommunications equipment meets the applicable technical requirements.
- Codice Interlock CUG (Closed User Group Interlock Code)
- Signalling System 7 parameter in accordance with ITU-T Recommendation Q.700.
- Cable ducts
- Underground pipes in which lines for transmission of information by telecommunications techniques are conveyed, including the access shaft.
- Communication parameters
- Elements that enable the persons taking part in a telecommunications operation, as well as the computer processes, machines, apparatus or telecommunications equipment involved, to be identified
- Country Code Top Level Domain or geographical top-level domain name: Top level domain name category (TLD) designating a country or a region. The designations of the ccTLDs correspond to the ISO-3166 standard (e.g.: ".ch" for Switzerland, ".fr" for France or ".de" for Germany.
- Declaration of conformity
- The objective of the declaration shall be to indicate that the product concerned is in conformity with standards or other normative documents to which the declaration refers.
- Acronym for Digital Audio Broadcasting. Standard procedure for the digital transmission of radio signals developed in the EU research initiative, EUREKA 147.
- Digital European Cordless Telecommunication interface, mainly in the 1.88 to 1.9 GHz frequency band. This interface may also be used for other applications.
- "Digital Video Broadcasting Handheld" is a standard for transmitting digital TV to mobile terminal equipment. The European Telecommunications Standards Institute gave its approval to DVB-H in November 2004. Whereas UMTS is particularly suitable for transmitting individual services, DVB-H is characterised by its ability to deliver data to a large number of users simultaneously.
- "Digital Video Broadcasting Terrestrial", standard procedure for the digital transmission of TV signals developed by the DVB project group. T stands for terrestrial broadcasting. DVB can also be broadcast by satellite (DVB-S) and cable (DVB-C).
- Domain names
- Computers connected to the internet communicate with each other using "Internet Protocol" and always have an IP address, or rather an IP number, for example 126.96.36.199, which is assigned by the ISP (Internet Service Provider). A domain name is therefore a type of address on the internet.
- Abbreviation for Digital Video Broadcasting – a technique developed and standardised by an international DVB project group, for digital transmission of TV signals.
- DCC (Data Country Code)
- Designation of the format of an NSAP address for national OSI networks.
- DIT (Directory Information Tree)
- Structure of the global directory in accordance with ITU-T Recommendation X.500 and ISO Standard 9594.
- DNIC (Data Network Identification Code)
- Code to identify a data transmission network in accordance with ITU-T Recommendation X.121.
- DSA (Directory System Agent)
- First level DSA: Ddrectory system which enables entries in the global directory in accordance with ITU-T Recommendation X.500 and ISO/IEC Standard 9594.
Second level DSA: Directory system situated below the first level DSA hierarchy.
- Domain Name System. Computers connected to the internet communicate with each other using the Internet Protocol (IP) and IP addresses, which uniquely identify every computer. Since it is difficult to memorise these addresses, the DNS enables internet users to use domain names consisting of words (letters and possibly numbers) instead of IP addresses consisting solely of numbers. The conversion of a domain name into the corresponding IP address takes place automatically via the name servers which make up the DNS.
- The entirety of the computers connected to the internet which share a common characteristic. The domain name system consists of numerous hierarchically organised domains and subdomains. In the example www.admin.ch, "ch" represents the top-level domain and "admin" the second level domain. The domain name makes the internet easier to use, as if the user knows the domain name he does not have to resort to the corresponding IP address.
- "Electromagnetic compatibility", the capacity of electronic equipment to function correctly in the electromagnetic environment (artificially generated electromagnetic fields, for example transmitter installations) without itself generating electromagnetic interference which affects other equipment operating in this environment.
- "European Telecommunications Standards Institute".
European agency responsible for standardisation of telecommunications.
- Electronic signature
- The electronic signature is a technical procedure which makes it possible to guarantee the authenticity of a document or an electronic message and to ensure the identity of the sender.
- Frequency allocation plan
- The frequency allocation plan specifies the allocation of frequency ranges to various radio services.
- Failure to comply with regulations
- Anyone who, intentionally or out of negligence, infringes any other provision of the legislation on telecommunications, a treaty or international agreement on the subject, or violates a decision taken on the basis of such provision and notified to him with an indication of the penalties available under this article, shall be liable to a fine not exceeding CHF 5000.
- Fully unbundled access to the local loop
- Provision of access to the local loop for another telecommunications service provider for utilisation of the entire frequency spectrum of the twisted pair metallic line
- Fast bitstream access
- Establishment of a high-speed connection to the subscriber from the exchange to the domestic connection on the twisted pair metallic line by a telecommunications service provider and cession of this connection to another provider for the provision of broadband services.
- The number of periodic changes in electrical current or in a sound wave per unit of time; the unit of measurement is the Hertz (Hz).
- "Global Positioning System", system originally developed for the US military which allows one's position to be determined world-wide with a positioning accuracy of under 10 metres. 24 satellites are used for positioning. The US Defence Department can determine the accuracy of positioning.
- "Global System for Mobile communications", digital cellular radio technology. Operates in the 900 MHz waveband.
- GSM-R (Global System for Mobile Communication Railway)
- Private mobile radio system for railway operators based on the GSM standard.
- Generic Top Level Domain: top-level domain name (TLD) category which designates the type of organisation which a website services (e.g. ".com", ".net", ".info").
- International Telecommunication Union.
- Information society
- "Information society" describes the form of society being created in the "information age", based mainly on the increasingly interactive acquisition, storage, processing, transmission, distribution and use of information and knowledge, in which a productive relationship between information resources and knowledge-intensive production play a major role.
- Interlinking of the equipment and services of two providers of telecommunication services to enable technical and logical interaction of the connected parts and services as well as access to third-party services.
- "Installation" (or establishing): putting telecommunications equipment into working condition, especially by repairing them.
- International Electrotechnical Commission
- ICD (International Code Designator)
- Designation of the format of an NSAP address for multinational OSI networks.
- IIN (Issuer Identifier Number)
- Identification number for issuers of international telecommunications credit cards in accordance with ITU-T Recommendation E.118 and ISO Standard 7812–2.
- International Organisation for Standardization
- ISPC (International Signalling Point Code)
- International signalling point code in accordance with ITU-T Recommendation Q.708.
- Intermediate network
- Decoupling network for Signalling System 7 (SS7) in accordance with ITU-T Recommendation Q.700.
- ITU standardisation sector (International Telecommunication Union).
- The ability to communicate between all users of the services forming part of the universal service.
- IP address
- The IP (Internet Protocol) address is the number which identifies any hardware (computer, router, printer etc.) which is connected to a network which operates this protocol. It is used for sending data to this address.
The Version 4 IP address, which is currently the most widely used, consists of four numbers between 0 and 255, separated by dots. The Version 6 IP address, which can already be used, is longer and considerably increases the number of possible IP addresses.
- Internet Corporation for Assigned Names and Numbers: an American not-for-profit corporation which is responsible for coordinating the internet addressing system in general and domain names in particular.
- Internationalised Domain Name. An Internationalised Domain Name is an internet domain name which may include special characters which are not defined in the ASCII standard. These special characters include, in particular, accented characters (e.g. é, à) or umlauts (e.g. ü, ä), which are common in numerous European languages, including German and French, and characters which do not form part of the Latin alphabet, such as Cyrillic, Chinese or Arabic characters.
- Internet Protocol. A network protocol widely used in computer networks such as the internet.
- Leisure-time radiocommunication
- Licence-free short-distance radio services for general use in the UHF ranges 433.050 – 434.790 MHz (SRD) and 446.00625 – 446.09375 MHz (PMR).
- Leased line
- (DTS, art 1 para. B / RS 784.101.1)
The provision of transmission capacities, as defined by the Council directive of 5 June 1992 on the application of the principle of provision of a network open to leased lines (92/44/CEE).
- Law on Radio and Television
- Federal law on Radio and Television.
- Market monitoring
- OFCOM’s regulatory tasks as part of the market access procedures for telecommunications equipment and the licensing regulations, as well as the radio and television legislation (unlicensed listeners and viewers).
- MMS (Multimedia Messaging Service)
- Service which allows users to exchange messages containing text, images and sound, generally by using mobile radio terminal equipment.
- Maritime radio
- Radio service on ocean-going yachts and ships in medium, short, ultra-short and satellite bands.
- "Marketing (or placing on the market)": the transfer or delivery of telecommunications equipment with or without payment.
- Manufacturer code
- Code used in the control procedures for group 3 telex equipment (no standardised instrument) which is specified in ITU-T Recommendation T.35.
- MNC (Mobile Network Code)
- Identification code for public terrestrial mobile telephone networks in accordance with ITU-T Recommendation E.212.
- Multi-purpose equipment
- Equipment which is suitable for reception of radio and television programme services and for other applications.
- Notification is therefore the process of announcing to the national authority one’s intention to place on the market telecommunications equipment using frequencies whose use is not harmonised at the international level.
- NI (Network Indicator)
- Network indicator number to differentiate the various signalling networks.
- NSAP (Network Service Access Point). NSAP address
- Information used to identify an OSI network access point.
- National Signalling Point Code
- To propose that telecommunications equipment be marketed by exhibiting them on commercial premises, presenting them at exhibitions, in brochures, catalogues, electronic media or in any other way.
- "Operating" is the use of telecommunications equipment irrespective of whether or not the transmission or reception of information is performed successfully
- Official document
- The term official document refers to all information recorded on any media (paper document, but also virtual documents: information contained in a database) held by an authority which is related to the performance of public tasks and is available in its definitive version.
- Object identifier
- Numerical value which enables precise identification of an information element within the framework of a communication processes.
- OSI (Open Systems Interconnection)
- Totality of standards and models for interconnecting open systems.
- Putting into service
- "Putting (or bringing) into service": the initial installation and operation of a telecommunications equipment, irrespective of whether or not the transmission or reception of information is performed successfully by the final user.
- "Powerline Communications", PLC is a "broadband" technology (e.g. for internet data traffic), which could compete over the "last mile" to end users with other broadband access technologies such as xDSL (broadband technology on ordinary telephone lines) and CATV (broadband technology on the TV cable network).
- Meeting of the Preparatory Conference (world conference for preparing the WSIS)
- PAMR (Public Access Mobile Radio)
- Public mobile radio system such as TETRA (Terrestrial Trunked Radio), which corresponds to a standard specified by ETSI.
- Digital trunked systems (PMR: Private Mobile Radio and PAMR: Public Access Mobile Radio) were developed for private and public users who have specific requirements regarding operating functions and security. Trunked systems differ from public GSM or UMTS systems in that they are able to rapidly establish a connection, enable group calling, priority calling, end-to-end encryption and offer the possibility of a direct connection between two mobile stations without the need for an intermediate base station (direct mode).
- PRMD (Private Management Domain). PRMD names
- Names of operators of private X.400 /ISO 10021 messaging systems.
- R&TTE Directive
- European directive liberalising assessment of conformity and placing on the European market of terminals and radio equipment.
- Contracts between operators enabling customers to use other mobile telephony networks.
- RDN (Relative Distinguished Name). RDN names
- Names of directory entries which are unique as they are related to a specific entry and which form a component of a directory name.
- Reception fee
- A fee which must be paid by all persons who possess or operate equipment suitable for reception of radio and television programme services.
- A body which is used by ICANN for administration of a top-level domain.
- An accredited body for the registration of second-level domain names within a top-level domain (ccTLD or gTLD).
- Receiver placed on top of the television set (set-top) which converts digital TV and radio signals to analogue so that the programmes can be used in normal receivers. The set-top box is also used to decode pay programmes using a smartcard.
- The word spam describes an electronic message (e-mail, fax, SMS message or instant message) which is sent to recipients unsolicited or without their consent. Spamming is the sending of such electronic messages to a large number of recipients. The sender of such advertising is termed a spammer.
- Short Message System.
- SRG SSR Idée Suisse
- Broadcasting Corporation
- The name of the foundation which was appointed by OFCOM for the assignment and administration of the second-level domain names registered in the ".ch" top-level geographical domain (ccTLD).
- T MNC (Tetra Mobile Network Code)
- Identification code for a PMR/PAMR radio network in accordance with ETSI ETS Standard 300 392-1.
- Telecommunications service
- Transmission of information for third parties by means of telecommunications techniques
- Transmission by means of telecommunications techniques
- Sending or receiving of information by wire, cable or radio, by means of electrical, magnetic or optical signals or other electromagnetic signals.
- Telecommunications equipment
- Apparatus, lines or equipment intended for the transmission of information by means of telecommunications techniques or used for that purpose.
- Transmission obligation
- Obligation of a wired network operator, based on a decision by the federal Office of Communications, to transmit a Swiss programme service.
- TETRA (Terrestrial Trunked Radio)
- Professional radiocommunication standard approved by ETSI and generally used for business communication and communication between security services.
- Top Level Domain: the highest level in the domain name system. It is sub-divided into numerous sub-domains distributed in the ccTLD and gTLD categories.
- "Universal Mobile Telecommunications System" is the European standard of the IMT2000 family of third generation mobile cellular standards (3G). In addition to the telephony service, UMTS will in particular allow the provision of multimedia services (data, images, sound) at data transfer rates of 144 kbit/s (vehicles), 384 kbit/s (pedestrians) and 2 Mb/s (buildings).
- "Ultra-Wide-Band" technology which features transmission of very short-duration pulses (of the order of one billionth of a second). It is becoming very popular for wireless connection of high-speed local area networks (100 Mbit/s to 1 Gbit/s) and also has the amazing ability to penetrate physical objects.
- Very High Frequency, the frequency range 88.5 – 108.0 MHz; currently, the normal method for broadcasting stereo radio programmes using analogue techniques (see also FM).
- "Voice over Internet Protocol" is a generic name which defines the transportation of voice traffic by means of transmission in packets using Internet Protocol (IP). VoIP traffic can be routed on a managed private network or the internet, which is a public network, or a combination of the two.
- "Wireless Local Loop", WLL connection allowing a subscriber to connect to public telecoms networks via a wireless link.
- World Summit on the Information Society.
- x Digital Subscriber Line - HDSL, ADSL & VDSL
Set of techniques and equipment used on a subscriber line enabling the subscriber to set up links with high data rates.