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| A C D E G H I L M N P R S T U V W | |
| A | |
| ARPU (Average Revenue per User) | Predominantly used in the mobile communications industry to describe the revenue generated per customer per month. |
| ASP (Application Service Providing) | A provider’s portfolio enables enterprises to lease IT applications. Advantage: Customers always have the latest version that the provider maintains centrally (e.g. in a computer center) and do not have to worry about buying and maintaining software applications (licenses, updates) themselves. |
| C | |
| Call center | A company, or department of a company, that offers operator-supported voice services. A large number of operators handle inbound calls via a hotline, with outbound calls being part of direct marketing efforts. |
| Call-by-Call (selection of a telephone company) | Dialing procedure that enables a telephone customer to use the carrier (long-distance operator) of his or her choice for long-distance and international calls (i.e., the customer can change carriers for each call). |
| Carriers’ carrier | A network operator who provides network services to other telecommunications companies. |
| Customer centricity | Comprehensive customer orientation – i.e., gearing actions to customers and their various needs when designing products and developing services, and also in sales, public relations and all market communications. The opposite would be product centricity, where a company focuses primarily on its products. |
| Customer segmentation | Division of customers into homogenous groups (segments) in order to consistently gear the portfolio of products and services, but also sales and public relations etc., to their various needs, and to deal with each customer segment on a differentiated basis. |
| D | |
| Desktop services | Our Global Desktop Services product features a variety of support services including outsourcing of whole IT networks. Deutsche Telekom offers an integrated IT service portfolio for corporate customers, providing everything from the server infrastructure and PC workstations through to application management and call center services for user support. |
| Digital identifier | A common framework for assigning names to content collected and distributed online. |
| Downstream | Communication of data from the Internet server to the user’s PC (opp.: upstream). |
| Down’s Syndrome | A congenital abnormality caused by a mutation of the DNA, commonly resulting in 47, not 46 chromosomes in each cell; people affected by Down’s Syndrome suffer from mental retardation, learning difficulties, loss of hearing and speech impediment. |
| E | |
| eGovernment | eGovernment involves simplifying and conducting processes relating to information, communications and transactions within and between governmental institutions, and also between these institutions, the public at large, and companies, by utilizing information and telecommunications technologies. |
| eHealth | eHealth involves simplifying and conducting processes relating to information, communications and transactions within and between institutions and individuals involved in healthcare provision by utilizing information and telecommunications technologies. |
| G | |
| GPRS (General Packet Radio Service) | A technology allowing higher data transmission rates in GSM networks. |
| GRID Computing | The use of large computers arranged as clusters and connected through distributed telecommunication infrastructures. |
| GSM (Global System for Mobile Communications) | A pan-European mobile communications standard for the 900-MHz frequency range. |
| H | |
| Hologram | An advanced form of photography that allows an image to be recorded in 3 dimensions. |
| Hosting | Provision of storage capacity via the Internet. An Internet service provider’s most important services in relation to hosting are registering and operating domains, leasing web servers (in full or in part) and leasing space in a computer center – including Internet link, power supply and emergency power supply, etc. |
| HotSpot | HotSpot is the name of a public area in which the customer can connect to the Internet using WLAN (wireless local area networks). The HotSpots are realized jointly by T-Com and T-Mobile. |
| I | |
| ICT | Information and Communication Technology. |
| Interconnection | Term used for the linking of networks of different providers, as regulated by the German Telecommunications Act. |
| Internet/intranet | The Internet is a worldwide IP-based computer network that has no central network management. Intranets, on the other hand, are managed IP networks that can be accessed only by specific user groups. |
| IP (Internet Protocol) | Nonproprietary transport protocol in layer 3 of the OSI reference model for inter-network communications. |
| IP address | Each computer connected to the Internet receives a clearly identifiable, numeric address. This IP address comprises four sequences of digits each separated by a period, e.g.: 217.247.84.89 (example: T-Online). Static IP addresses enable the same computer to be contacted under the same address at any time (e.g. a web server). Dynamic IP addresses are used for dial-in Internet access for T-Online customers, etc. Customers are then allocated a free IP address, but not the same one each time. |
| ISP (Internet Service Provider) | An Internet service provider offers various technical services that are required to use or operate Internet services. |
| L | |
| Last Mile | The last mile is a term used in relation to power and gas supply networks as well as telecommunications networks to describe the final section of the line that runs up to the subscriber household. Operators with no last mile must generally pay a charge to the network owners. |
| Location based services | Services that allow users to access through their mobile phone information based on their geographical location. |
| M | |
| Multimedia | Term used for real-time integration of text with still images and graphics, video and sound. |
| N | |
| NGN | In the classic architecture of modern telephone networks, voice and data transmissions are routed via different technical platforms. The aim of the next generation network (NGN) is to combine both functions and thus provide integrated voice-data services. NGNs are based entirely on IP technology. |
| P | |
| Page Impressions | This term is used to describe the number of times a website has been visited. Page impressions are therefore an important criterion for evaluating the reach of Internet sites. |
| PDA (Digital assistens) | Handheld computers with multiple functions such as diary, task manager, address box, calendars, notebook, telephony and Internet connections. |
| PDAs (Digital assistens) | Handheld computers with multiple functions such as diary, task manager, address box, calendars, notebook, telephony and Internet connections. |
| Preselection | Preselection of a telephone company. Procedure in which the customer selects a certain provider – known as the long-distance carrier – for all of his or her long-distance and international calls. |
| R | |
| RFID | (Radio Frequency Identification) tags: small radio transmitters, which often appear as labels with a barcode, that transmit information relating to the device they are attached to. |
| Roaming | A feature of cellular mobile communications networks. Activated mobile stations remain accessible, regardless of location, in all radio cells of the entire area served by the network. Roaming can also include similar networks of different network operators, as is the case with international roaming in the pan-European GSM system. |
| S | |
| SDH network | The SDH network is a network of nodes. The system features a basic transmission rate of SDH is 155 Mbit/s and uses synchronous transport modules (STM). SDH technology provides numerous functions for network management and the maintenance of quality parameters. |
| Stakeholder | The stakeholder approach is an extension of the shareholder value approach used extensively in business management. In contrast to the shareholder value principle that focuses on the needs and expectations of a company’s shareholders, the stakeholder approach tries to set the company in a general social context and reconcile the needs of the different stakeholders. In addition to shareholders, stakeholders also include staff, customers, suppliers as well as the government and the public at large. |
| T | |
| T-DSL | Deutsche Telekom’s asymmetrical digital subscriber line (ADSL) service. |
| T-ISDN | Deutsche Telekom’s integrated services digital network (ISDN). |
| T-Net | Deutsche Telekom’s digitized telephone network. |
| TiVo | A “set top box” that allows digital storage of TV programs so that users can fast-forward through advertising breaks or unwanted material. |
| U | |
| UMTS | International third-generation mobile communications standard that integrates mobile multimedia and telematics services in the 2-GHz range. |
| V | |
| Video-on-demand | A Service that allows subscribers at any time to call up and watch a selection of movies (on video). The video is either broadcast over the broadband cable network or over DSL and the telephone network to the subscriber. The back channel used to send movie selection information to the broadcasting center is available with DSL, but not with the broadband cable network. A back channel can therefore be established over the telephone network in the case of VoD over the broadband cable network. |
| VoIP (Voice over Internet Protocol) | Technology for establishing telephone calls via the Internet. There are three methods: PC to PC, PC to fixed network, telephone calls over IP-based internal networks. |
| VPN (Virtual Private Network) | A virtual private network is a computer network that uses a public network (for example, the Internet) to transport private data. Subscribers to a VPN can exchange data just like over an internal network, although they are not directly interconnected. |
| W | |
| W-LAN (Wireless Local Area Network) | Wireless networks for mobile Internet access. Multiple computers can also be connected wirelessly to each other or to a central information system, a printer or a scanner. |
| WAP (Wireless Application Protocol) | Enables content to be made visible on the mobile phone display. |
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