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2G  is the term for the second-generation mobile communications standard. In Europe it was implemented through the Global System for Mobile Communications (GSM).

2°—German CEOs for Climate Protection initiative

The goal of the 2°—German Entrepreneurs for Climate Protection initiative is to limit global warming in the long term to a maximum of two degrees compared to the preindustrial level. Together with the most important leaders in the German business sector and as part of the initiative, Deutsche Telekom is supporting the German government at both the national and international level in developing a successful policy to protect the global climate.


3G  stands for the third-generation mobile communications standard, which enables much faster transmission speeds than its 2G  predecessor. The leading global 3G  technology is the Standard Universal Mobile Telecommunications System (UMTS).

<2Mbit technology

<2Mbit technology refers to a transmission technology with bandwidths of less than 2 Mbit/s.


The AA1000  (AccountAbility 1000) standard developed by the non-profit organization "Institute of Social and Ethical AccountAbility" has the goal of increasing the credibility and quality of sustainability reporting and improving reporting processes and systems.

The core element of the modules offered by AA1000  is the integration of stakeholders into the internal sustainability process of the company/organization. It requires the adherence to three principles:

  1. Inclusivity: Integration of relevant stakeholders in the development and implementation of CR activities
  2. Materiality: Definition of essential topics and their relevance and significance for the organization and its stakeholders
  3. Responsiveness: The response to topics which are relevant for its stakeholders within the scope of corresponding actions and activities as well as accompanying communications measures
ADSL (Asymmetrical Digital Subscriber Line)

ADSL for private end-customer lines: Technology used to transmit data at fast rates (between 16 kbit/s and 640 kbit/s upstream, up to 8 Mbit/s downstream) via standard copper wire pairs in the local loop within a radius of approx. three kilometers. Also see DSL.


ADSL2+: Successor product to ADSL that raises the maximum data rate to 16 Mbit/s (downstream) or 1 Mbit/s (upstream). See also DSL.

All IP

All-IP  is a data transmission technology enabling all media services such as TV, telephony and Internet to be operated in an IT network that is based on the Internet Protocol (IP ). All applications are transmitted in standardized data packets so that devices and services can exchange data and communicate with each other.


App  stands for application and denotes any type of application program. In the narrower sense, apps are programs that can be directly downloaded to a smartphone or tablet PC from an online shop. They offer diverse functions such as timetable information, games and translations.

Apple iOS

Apple iOS  is the operating system for smartphones, tablets and other mobile devices by Apple. It is based on the computer operating system Mac OS X.


ATM  (Asynchronous Transfer Mode) is a transmission standard in which data is encoded and transferred in small packets (cells).


An audit is a systematic examination of products, processes or systems. An audit checks whether the quality-related activities and their results correspond to the requirements and are suitable for achieving the set objectives. Audits are performed by internal or external auditors specifically trained for this purpose.


Describes the connection of an upstream (often subordinate) network node with a central network node. Can be achieved with any feasible transmission technology.


Denotes the width of the frequency band used to transmit data. The broader the bandwidth, the faster the connection.

BKMS (Business Keeper Monitoring System)

Certified reporting system. Checks for full compliance with the Code of Conduct and employee integrity. Employees, suppliers and partners can use the secure process at any time and from any location to report infringements such as criminal acts, ethical misconduct and incorrect accounting and auditing, and to help find remedies.

Broadband network

The term „broadband" is commonly used to refer to fast data transmission rates.

Business Partners

Interface between HR and operational business.

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 and/or outbound calls as part of a direct marketing campaign.


CAPEX  In financial accounting, the term Capital Expenditure (CAPEX ) refers to investments in plant and systems. These include investments made to maintain existing plant. CAPEX  must be posted to the asset account (capitalized).

Carbon footprint

Describes the total of all greenhouse gases that are emitted directly or indirectly within a defined period. A carbon footprint can be calculated for a company, an individual or the life cycle of a product. All relevant emissions, from raw materials extraction to disposal, are included in these calculations.

CDP (Carbon Disclosure Project)

The Carbon Disclosure Project (CDP) is an initiative involving more than 534 institutional investors with total investment assets of USD 57 billion (as of June 2010). The CDP would like to promote dialog between investors and companies on climate change issues. Currently, some 2,500 of the world's largest companies are involved in the project and provide information on their greenhouse gas emissions and climate protection strategies. The CDP collects and publishes the data on an annual basis.


CeBIT  (German acronym for Center for Office Automation, Information Technology and Telecommunications) is the world's largest ICT trade fair and takes place annually in Hanover, Germany.

Cloud computing

Cloud computing  describes the use of external IT infrastructures such as computers, memories or networks and software such as operating systems or management tools.

CO2 equivalents

CO2 equivalents (CO2e) indicate the greenhouse gas potential of various climate-damaging gases and clarify how much a specific quantity of a greenhouse gas contributes to the greenhouse effect. The reference value used here is carbon dioxide (CO2).

Connected life and work

The convenient management of all personal data and Internet services on any screen, whether PC, cell phone or television. This is based on the secure online storage of data, making it accessible by all devices via broadband networks.


COP  stands for the Conference of the Parties that is held annually under the UN Framework Convention on Climate Change. The 16th UN Climate Conference (COP  16) took place in Cancún in November/December 2010. The 17th UN Climate Conference (COP17) was held in Durban in November/December 2011.

Corporate giving

Corporate giving  refers to financial donations made by the company to social or ecological projects.

Corporate Volunteering

Corporate volunteering describes the voluntary efforts of a company's employees in the social or ecological domain that are promoted by the employer.

Critical energy infrastructure

The term "critical energy infrastructure" refers to networks, services and facilities whose interruption or destruction would have serious effects on the health, safety, security or economic well-being of the people in a region or state.

Cyber mobbing

This term describes harassing, hassling or threatening people on the Internet – especially in chat rooms, in e-mails or instant messages – or over cell phone.

Data rate

The data (transmission) rate, colloquially also called the transmission speed, describes the quantity of digital data which can be transmitted within a unit of time. It is measured in bps (bits per second).

DECT (Digital Enhanced Cordless Telecommunications)

DECT is a standard for wireless transmission of voice and multimedia data between a base station and up to eight end-devices. This standard ensures high voice quality.


Dematerialization  refers to the replacement of tangible products such as letters, photographic prints and CDs with digital files.


This term means the replacement of material things with immaterial things – e.g., paper invoices with online invoices).

Digital divide

The term refers to a situation in which people do not have the same degree of access to modern digital information and communications technologies (ICT) and, for this reason, do not have the same opportunities for social and economic development. As a leading ICT enterprise, Deutsche Telekom sees itself responsible for giving people within its sphere of influence broad access to ICT and, in this way, for preventing inequality.

Digitale dividend

The expression „digital dividend" refers to the increase in transmission capacity that is achieved by changing over to digital technology. In the course of digitizing TV and radio broadcasts (DVB-T), signals will be transmitted in future over one frequency or one channel. This will free up valuable frequency bands - used to date solely for the transmission of analog signals - for the broadband Internet service.

DJSI (Dow Jones Sustainability Indexes)

Launched in 1999, the Dow Jones Sustainability Indexes (DJSI) are the leading global stock market indexes for sustainable capital investment. They measure and track the sustainability performance of companies. In cooperation with the Dow Jones Indexes, the STOXX Limited index for renewable energy, and ratings agency Sustainability Asset Management (SAM), they provide asset managers with important benchmarks to establish and manage sustainability portfolios. More than 300 companies are listed in the DJSI.

Double play products

Double play means that telephony and Internet can both be used via a single access. Deutsche Telekom's Call & Surf rate plans are examples of this.


Refers to the downloading of files from a remote server over networks such as the Internet or mobile communications connections onto a local computer or other client, such as a cell phone.


Downstream  is data transmission from the Internet to the user's computer. Files are also downloaded this way.

DSL (Digital Subscriber Line)

In Deutsche Telekom's service portfolio as:

  • ADSL (Asymmetrical Digital Subscriber Line): Technology used to transmit data at fast rates (between 16 kbit/s and 640 kbit/s upstream; up to 8 Mbit/s downstream) via standard copper wire pairs within the local loop within a radius of approximately three kilometers.
  • ADSL2+: Successor product to ADSL that raises the maximum data rate to 16 Mbit/s (downstream) or 1 Mbit/s (upstream).
  • VDSL  (Very high bit rate Digital Subscriber Line) is a new technology used to transmit exceptionally high data rates (5 Mbit/s upstream, 50 Mbit/s downstream) via a fiber-optic network.
DSLAM port

A DSLAM (Digital Subscriber Line Access Multiplexer) is typically an exchange that connects DSL lines. The DSLAM collects DSL data traffic to be transmitted to customers on a local level and, on the other side, establishes the connection to a regional broadband access server. Each individual outlet to a subscriber is referred to as a port. Each port is comprised of a transmission unit and a splitter.


The term e-learning refers to all forms of learning that are supported by electronic media such as the Internet.

E-TASC (Electronics-Tool for Accountable Supply Chain)

The electronics industry's information tool – E-TASC – is an innovative instrument that helps us to establish transparency with regard to the social and ecological aspects of our supply chains.

ECO Mode

ECO Mode  designates a function in wireless data transmission between the base station and the phone handset or computer. It enables a significant reduction in the transmission power of the devices, along with the associated electromagnetic radiation, without any sacrifice in performance.

EDGE (Enhanced Data Rates for GSM Evolution)

Modulation on the air interface to enhance data rates in GSM (Global System for Mobile Communications) and TDMA (Time Division Multiple Access) networks.


EMF (electromagnetic fields) are a combination of electric and magnetic fields. They are produced when electric current and charges change. This forms an electromagnetic wave, which propagates in space or through matter. This wave transports energy and is used in mobile communications to transmit data.

EMF (electromagnetic fields)

Electromagnetic fields (EMF) are produced when electric currents and charges change and form an electromagnetic wave which propagates in space or through matter. The wave transfers energy. Some EMFs occur in nature – daylight, for example – while others are generated by technical devices.

End-of-life management

The goal of end-of-life management is to recycle materials and resources at the end of a product's life. Its central tasks include not only material and energy recycling but also responsible disposal of residual materials. End-of-life management  is a key element in a completely sustainable product lifecycle, and plays a crucial role for ICT products.

Energy performance certificate

The energy performance certificate is used to assess the energy performance of buildings according to the Energy Saving Ordinance (Energieeinsparverordnung—EnEV). The EnEV translates the EC Directive on Energy Efficiency into national law.

Escalation process

Deutsche Telekom has defined a progressive escalation process to handle cases in which a supplier refuses to undergo audits or provide self-assessments or violates Deutsche Telekom standards. The company classifies the risks associated with the supplier's behavior and develops escalating measures based on the risk category. Measures range from targeted development programs for suppliers, sanctions or even termination of the contractual relationship.


ESG  describes a company's conduct from an environmental, social and governance perspective.

EU Corporate Leaders Group on Climate Change

The EU Corporate Leaders Group on Climate Change  (EU CLG) initiative, which was founded by the Prince of Wales, is an association of 18 leading European companies from different industries. As a founding member of the EU CLG, Telekom is dedicated to an ambitious, fair agreement on the global reduction of CO2 emissions.

eBest ordering system

eBest is Telekom's electronic ordering system. It is available to all employees in Germany and offers more than 900 environmentally friendly office items in addition to conventional office supplies.


Channel for optical data transmission.

Flash mob

Flash mobs are masses of people who congregate in a public or semi-public space spontaneously, for a brief period of time and for a specific purpose. The goal of a flash mob is to raise awareness and promote a specific topic, for example a political idea. They are primarily organized through social networks, blogs, e-mail or cell phones.


Flash-OFDM  (Fast Low-latency Access with Seamless Handoff—Orthogonal Frequency Division Multiplexing) is a mobile broadband Internet data transmission protocol. It works with microwaves in the 450 MHz frequency range and is not compatible with GSM or UMTS. Data transmission rates cannot exceed 5.1 Mbit/s downlink and 1.8 Mbit/s uplink.

Fraud Policy

Telekom's Fraud Policy  came into effect on February 7, 2006, combating white-collar crime and legal offenses throughout the Group. It defines central terms relating to fraud and lays down a number of basic principles for combating fraud. In addition, it lists a catalog of possible violations, and describes measures that must be taken to combat them.


FTE  (full-time equivalent) is an indicator used in human resources management. This indicator is used to convert the headcount into full-time positions. Each full-time position is assigned the value of 1.0 FTE . Let us assume that a company employs 100 part-time employees at 50 percent of the collectively agreed/standard weekly work hours. Each of these positions is scored as 0.5 FTEs. The indicator would therefore give us a result of 50 FTEs.


FTSE4Good  describes a group of stock indexes that is published by index company FTSE and was co-founded by the Financial Times and the London Stock Exchange. The FTSE4Good  indexes were developed to measure and communicate the performance of companies in accordance with globally recognized standards on corporate responsibility. This is intended to encourage institutional and private investors to invest in companies with responsible business practices. The indexes also represent a comparison base for companies that strive to take a leading role in CR.

FTTB lines (fiber to the basement)

FTTB (fiber to the basement or fiber to the building) refers to a mode of connecting homes via fiber optics. Fiber-optic lines are installed into the basement of the customer's building, for example. Available gas or water pipes can be used, eliminating the need for expensive underground construction works. Data transmission within the building itself continues to be conducted to the customer's apartment via the available copper lines or VDSL  technology.

FTTC (fiber to the cabinet)

Fiber-to-the-Cabinet (FTTC) means that a fiber-optic line is installed up to a point close to the subscriber. For the last section up to the subscriber drop, the signal is transferred to copper cable.

FTTH (fiber to the home)

FTTH describes the installation of fiber-optic cables up into a subscriber’s home. With FTTH, Internet speeds in both directions of up to 50 Mbit/s can be achieved. The customer can simultaneously receive several HDTV programs as well as use the Internet and several phone lines.

GeSI (Global e-Sustainability Initiative)

GeSI is a joint initiative established by the world's leading ICT organizations with the objective of improving sustainability in the ICT sector. Deutsche Telekom is a member of the GeSI initiative, as are many other leading enterprises.

GHG Protocoll (Greenhouse Gas Protocol)

The GHG Protocol is a globally recognized tool for quantifying and managing greenhouse gas emissions. Enterprises increasingly use the GHG Protocol to manage greenhouse gas emissions within the framework of their corporate social responsibility strategy. Emissions are divided into the Scope 1, Scope 2 and Scope 3 categories, depending on the degree to which they can be influenced by the reporting company. Scope 1 comprises all direct emissions. Scope 2 covers all indirect emissions that for example are produced during the generation of electricity, steam or heat and that the company procures from external sources. Scope 3 applies to all other indirect emissions.

Gigabyte society

This term describes the trend towards increased mobile Internet usage: in the year 2015 a mobile communications customer will use around 14 gigabytes of data volume per month. Back in 2005, this was only a few megabytes.

Global Compact

Global Compact , the initiative founded in 2000 by the then UN Secretary-General Kofi Annan for a "global pact," aims to support and strengthen cooperation between the United Nations, industry and other social groups. It sets out ten principles relating to the protection of human rights, employment, social and environmental standards, and the fight against corruption, and calls on companies to incorporate these into their corporate policies. Deutsche Telekom originally declared its commitment to the principles of the United Nations Global Compact  in the year 2000.

Global Procurement Policies and Practices (GPP)

The procurement and management of supplier relationships play a key role in Telekom's social responsibility. To ensure that the purchasing / procurement practice at Telekom is sustainable, its management board put a comprehensive set of procurement principles, GPP, into force in 2009.

Google Android

Google Android  is an operating system for smartphones, cell phones, netbooks and tablets that was developed by the Open Handset Alliance. Google is the most important member of this alliance.


GPON  stands for Gigabit Passive Optical Network and enables transmission rates in the Gbit/s range. This standard makes it possible to transfer multiple very high-rate connections on one branched optical fiber across large distances. It is used in the access network.

GPON technology

GPON  (Gigabit Passive Optical Network) is a standardized fiber-optics system that does not need any active components and is therefore more cost-effective than traditional fiber-optics networks.

GPRS/EDGE technology

GPRS/EDGE (General Packet Radio Service/Enhanced Data Rates for GSM Evolution) is a widespread 2nd generation mobile communications technology. EDGE accelerates GPRS services, making it possible to achieve data rates of up to 473 kbit/s. Today, GPRS/EDGE is frequently being replaced by 3rd and 4th generation mobile communications technology.


GPS  stands for Global Positioning System and is a satellite navigation system for geographical positioning and measuring time. It was developed in the 1970s by the U.S. Department of Defense and is now also being used for civilian purposes. Nowadays, GPS  is also a component of cell phones.

Green Car Policy

Telekom's Green Car Policy  has stipulated a CO2-based selection process for the procurement of new company cars since April 2010. A bonus/penalty system creates additional incentives for selecting a fuel-efficient model. Users who choose a low-emission car receive a bonus in relation to the savings in fuel costs. Drivers of high-emission cars in turn pay a penalty to share increased mobility costs and make up for greater strain on the environment.

Green electricity privilege

According to the Renewable Energy Sources Act (Erneuerbare Energien Gesetz—EEG), electricity suppliers are obligated to help finance the remuneration paid for electricity fed into the grid from renewable sources. A levy is imposed to subsidize the fixed price payable for the supply of renewable energy. However, electricity suppliers that generate at least 50 percent of their electricity from renewable sources do not need to pay the EEG levy. This exception is called the green electricity privilege.

Green ICT

Green ICT  is the name of the movement toward designing environmentally-friendly and resource-efficient ICT products over their entire life cycle – from system design and component manufacturing to usage and recycling of the equipment.

GSM (Global System for Mobile Communications)

Global digital mobile communication standard.

High-frequency electromagnetic fields

The frequencies of high-frequency electromagnetic fields range from 100 kilohertz to 300 gigahertz. In everyday life they occur primarily during wireless information transmission for radio, television, mobile communications and other communication technologies.

Home gateway

When connecting multiple devices in a customer's home to the Internet, it does not make sense to connect each device separately. A home gateway, such as a DSL router, is used instead. The gateway assigns specific services to each device and/or enables access to these devices, connecting the local area network (LAN) to a larger network.


Hospitality  denotes the relationship between guest and host. In compliance management, hospitality is subject to strict regulations governing the acceptance of gifts and benefits that have a monetary value.


HotSpot  is the name of a public area where customers can access the Internet using wireless local area networks ( WLAN). The HotSpots are realized jointly by T-Home and T-Mobile.

HSDPA (High Speed Downlink Packet Access)

Packet-based protocol that enhances data rates in UMTS networks and lifts transmission speeds into the megabit range.

HSE (health, safety and environmental management system)

HSE denotes comprehensive health, safety and environmental management systems. Based on various management standards such as ISO 14001  (environmental management) and OHSAS 18001  (occupational safety and health), HSE provides tools for continually improving a company's performance.

HSUPA (High Speed Uplink Packet Access)

HSUPA technology accelerates data upstreaming from mobile devices into the network and significantly reduces transfer durations (ping time). This makes HSUPA the ideal complement to HSDPA on T-Mobile's network. Together, HSDPA and HSUPA ensure that users can surf the Internet or work in the intranet while on the move, experiencing a similar level of user comfort as with fixed-network DSL.

ICNIRP (International Commission on Non-Ionizing Radiation Protection)

ICNIRP is an international association of scientists who are researching the effect of non-ionizing radiation on people's health. The association, headquartered in Germany, is housed within the German Federal Authority for Radiation Protection but is legally independent from the latter organization.

ICT (Information and Communication Technology)


IDW PS 821

The IDW PS 821  standard of the Institute of Public Auditors in Germany ensures that report contents correspond to the information needs of the target groups. The reporting organization can base its reporting on the criteria of the GRI, OECD or ILO or on its own list of criteria. These criteria must be classified as suitable by the auditor and be used to test completeness.

ILO (International Labour Organization)

ILO was founded in 1919 and since 1946 has been a special United Nations organization with its main office in Geneva. 182 states around the world are ILO members. They delegate government representatives and representatives of employer and employee interests. The object of ILO is to improve work and living conditions of all people in order to secure world peace. To this end, legally binding treaties and conventions as well as work and social standards have been drawn up. The member states report regularly to the ILO on implementation of the treaties, and on the status of their national legislation relating to industrial law and industrial safety legislation. On this basis, the ILO creates the Global 100 list of the world's most sustainable companies from the 1,800 corporate groups listed on the MSCI World index.


Immissions  are noises, tremors, air pollution, heat, radiation and similar environmental effects that impact people, animals, plants or objects.


The Swiss rating agency uses its own sustainability ratings to create investment universes, e.g. the „Futura Global Stock" fund issued by Switzerland's Raiffeisen banks.

Internet /Intranet

The Internet is a worldwide Internet Protocol ( IP )-based computer network that has no central network management. By contrast, intranets are managed IP  networks that can be accessed only by specific user groups.


IP  stands for Internet Protocol and is a data encryption system for data exchange over the Internet.

IP adress

Each computer that is connected to the Internet has a clearly identifiable, numeric address, the IP  address, comprising four sequences of digits that are separated by periods, e.g.: (example: T-Online). Static IP  addresses enable the same computer to be contacted under the same address at any time (e.g., by a Web server). Dynamic IP  addresses are allocated for instance to T-Online customers dialing up to the Internet. They receive an unoccupied IP  address which will not be the same every time.

IP radio relay technology

IP  radio relay technology is a transmission system for transmitting data across large distances via radio relay. Data is transmitted in separate packets using the Internet Protocol (IP ). In radio relay, special directional antennas are used to focus radio waves and transmit them in a certain direction, and to receive them accordingly.

ISAE 3000

The ISAE 3000  standard of the International Federation of Accountants provides an international framework for testing non-financial information and can therefore also be used for sustainability reports. The principles of materiality, relevance and honesty are applied to the object under test, which is specified by the customer and the auditor in advance.

ISDN (Integrated Services Digital Network)

ISDN integrates telecommunications services such as telephone, fax and data communications in a single network. ISDN digitizes the data, which improves transmission quality, enhances transmission speed compared to the standard analog transmission system, and enables packet-switched transmission.

ISO 14001

The international environmental management standard ISO 14001  defines requirements that are accepted worldwide for environmental management systems. It focuses on a continual improvement process in the implementation of green goals in business enterprises and other institutions. Based on ISO 14001 , environmental management systems can be certified by independent environmental auditors.

The following Group companies were certified under Telekom's ISO 14001  umbrella certificate at the end of February 2012:

  • OTE
  • Slovak Telekom
  • Magyar Telekom
  • PTC
  • Telekom Deutschland
  • T-Mobile Austria
  • T-HT Hrvatski Telekom
  • T-Mobile UK
  • Makedonski Telekom
  • T-Mobile Czech Republic
  • T-Mobile Netherlands
  • T-Systems Deutschland
  • T-Systems Czech Republic
  • T-Systems Iberia
  • IT Services Hungary
  • T-Systems Austria
  • DeTeFleetServices
ISO 16001

This standard describes the requirements for an energy management system which aims to enable the company to systematically and continually reduce energy consumption while taking into consideration legal framework conditions.

In principle, EN 16001:2009 is based on the environmental management system standard ISO 14001 , making it very easy to integrate into it. A joint introduction of both systems is therefore very sensible and advisable.

ISO 50001

ISO 50001  is a global standard for operation of energy management systems at companies.

ISO 9001

ISO 9001  is an international standard that specifies minimum standards according to which processes must be configured in a company. This ensures that customers receive the expected quality. ISO 9001  concerns the quality and reliability of services and deliveries but is not a product certification.

imug (imug (EIRIS))

During analysis of CR performance by imug/EIRIS, corporate data for each individual criterion is assessed on different scales, usually covering five grades. Investors can map the results of evaluation of quality and quantity in the EIRIS Portfolio Manager, giving individual weighting to individual criteria. It is therefore impossible to make a general overall assessment of CR performance since this depends on the individually selected assessment framework and the investor's individual choice of criteria.

KKLD Research & Analytics

The international rating agency first compiled the KLD Global Climate 100 Index (GC 100) in July 2005. The GC 100 lists companies by climate protection criteria and supports decisions to make investments that help reduce the impact of climate change.

KPI (Key Performance Indicator)

In business administration, key performance indicators are figures that are used to quantitatively measure the progress that an organization has made in the implementation of its main objectives.

Labor Cost Management

Project to make personnel costs and remuneration structures transparent at international subsidiaries throughout the Group.

Load shifting

Load shifting  can be used within a smart grid to reduce the load on power lines during peak load times. To do this, ICT is used to schedule power consumption, e.g. by switching on appliances such as washing machines or charging electric car batteries during off-peak periods. Load shifting  results in lower costs if using flexible power rates and precise billing periods. Consumption of electricity can also be more effectively adjusted to fluctuating sun and wind energy, which is becoming more frequent as a result of the switchover to renewable energy sources in Germany.

Load-adaptive operation

Energy-efficient operation of equipment such as data centers or network nodes. In load-adaptive operation, only those components that are actually needed at that moment to process current data traffic are activated.

Low Carbon Society

The term "low carbon society" refers to a scenario for future development of the world economy in which greenhouse gas emissions, above all CO2 emissions, are greatly reduced in order to slow down the ongoing climate change. Increased efficiency based on the use of innovative information and communications technologies can play a vital role in this field.

Low-frequency electromagnetic fields

Low-frequency electrical and magnetic fields (between 1 hertz and 100 kilohertz) are primarily generated by technical applications. Electrical and magnetic fields that are significant in everyday life are mainly generated by power supply, household devices and electrical installations.

LTE (Long Term Evolution)

LTE is the successor of the UMTS mobile communications standard and guarantees high transmission speeds and short connection times: more than 100 Mbit/s downstream and 50 Mbit/s for upstream.

Mbit/s (Megabits per second)

Mbit/s (Megabits per second).

Micro analysis

Unlike a macro analysis, a micro analysis does not look at how an indicator has developed, e,g., whether a limit has been exceeded, but at the causes of that development.

MMS (Multimedia Messaging Service)

MMS is the multimedia successor of text messages (SMS). In contrast to SMS, MMS makes it possible to send not only short messages but also various media such as images, animations, video and audio sequences or (long) texts. The term MMS refers not only to the service itself but also to the messages that are sent.

Monetary Power Efficiency Indicator (MPEI)

The Monetary Power Efficiency Indicator (MPEI) is the ratio between a company's energy consumption and its annual revenues and enables an assessment of the company's energy management independent of market developments.

Network node

Network node  is an umbrella term for a device that connects two or more transmission paths of a telecommunications network.

NGN (Next Generation Network)

In the traditional architecture of modern telephone networks, voice and data transmissions are routed via different technical platforms. The aim of a next generation network is to combine both functions to provide integrated voice-data services. NGNs are based entirely on IP  technology.

Notice and takedown policy

A notice and takedown policy is a policy that requires online service providers to delete illegal content upon being notified of such content. This can apply to slander or violation of copyright, for example.

OECD (Organisation for Economic Cooperation and Development)

OECD was founded in 1961 with its head office in Paris. It is a an international organization of 31 countries, which are committed to democracy and the market economy. It consists almost exclusively of industrial countries, and is dedicated to sustainable growth, employment and free world trade. It supports a best practice exchange and is seen as one of the most reliable sources for comparative studies on economic and social trends. In its guiding principles for multinational corporations, OECD defined the rules for responsible corporate activities, thereby helping to establish the term CR.

Oekom (oekom research AG)

Since 1993, the oekom research rating agency has assessed and compared national and international organizations, thus paving the way for sustainable investment in Europe.

OHSAS 18001

OHSAS 18001  (Occupational Health and Safety Assessment Series) is one of the most significant standards worldwide for operating occupational health and safety management systems and is used as the basis for certification in many countries.

OHSAS 18001

OHSAS 18001  (Occupational Health and Safety Management System) is the internationally recognized specification for occupational health and safety management systems. OHSAS 18001  is compatible with ISO 9001  and ISO 14001  and aims to support organizations with fulfilling their obligations in regard to health and safety in the workplace in an efficient manner.

Omnibus survey

An omnibus survey is a survey "for everyone" (Latin = omnibus). It is used in empirical field research and compiles questions from different clients in one survey.

PASM (Power and Air Condition Solution Management GmbH)

###PASM (Power and Air Condition Solution Management GmbH) ###is a subsidiary of Deutsche Telekom AG. PASM is responsible for procuring, provisioning and delivering power, including the associated support services, within the Group.

PCF (Product Carbon Footprint)

The term product carbon footprint is defined and used differently by different countries. In the overall context, the term means the balance of greenhouse gas emissions along the entire life cycle of a product in a defined application and related to a defined unit of use.


POTS  (Plain Old Telephone Service) is a corruption of the technical term, PSTN (Public Switched Telephone Network) for analog telephone service, which is outdated in most areas. The term has become standard technical jargon. POTS  is used to refer to any service feature that could already be used in analog networks.

Power-down mode

The power-down mode is a defined state of a microprocessor in which its executing units and caches are switched off and do not use any power. The mode helps reduce stand-by power consumption.


In contrast to postpay contracts, prepay communication services are services for which credit has been purchased in advance with no fixed-term contract obligations.

RECS (Renewable Energy Certificates System)

RECS was introduced in 2002 to promote the development of renewable energies at international level. The system now operates in 24 countries in Europe as well as in Canada, the U.S. and South Africa. The standard certificate awarded by RECS guarantees that identifiable amounts of electrical energy are supplied from specific regenerative sources, thus making regenerative, CO2-neutral energy freely tradable. Procurement of these certificates when buying energy means that the quantities purchased can be traced directly to the certificate acquirer. Deutsche Telekom relies on this system to obtain all the energy it needs in Germany from regenerative sources.


Rectifiers are used in electrical engineering and electronics to convert AC (alternating current) into DC (direct current).

Relative energy consumption

In contrast to absolute energy consumption, the relative energy consumption is calculated in relation to a specified reference value. This may be the number of consumers, for example, or a company's revenues.

Remote control connection

A remote control connection is used to transmit electronic data across large distances, e.g., via satellite. For example, it is used in network control systems to transfer network data between the switch and a control unit.


A feature of cellular mobile communications networks that ensures that 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 run by different operators, as is the case with international roaming within the pan-European GSM system.


A router is an interface between two networks. Several networks are connected to each other via a device with network connections and configurable software. This device analyzes the incoming data packets based on their destination addresses, and blocks them or forwards them.

RRH/RRU systems (Remote Radio Head/Remote Radio Unit)

RRH or RRU systems are used for weatherproof installation of transmission and receiver systems directly onto antenna masts for mobile communications. They need only a short high-frequency line to connect the antenna, which allows reduced transmission power and increased efficiency.

SAM ((Sustainable Asset Management) Research AG)

The SAM research team assesses the sustainability performance of more than 2,000 enterprises all over the world. Its assessments form the compilation basis for the Dow Jones World Index and the Dow Jones STOXX Index (Europe).

SAR (Specific Absorption Rate)

SAR is measured in watts per kilogram of body weight. It is a measure of the rate at which electromagnetic energy is absorbed and converted to body heat. The SAR levels of all cell phones sold by T-Mobile comply with the limits set out in international guidelines, and generally fall well below them.

Scope 1 emissions

The Greenhouse Gas (GHG) Protocol divides emissions into the Scope 1, Scope 2 and Scope 3 categories, depending on the degree to which they can be influenced by the reporting company:

  • Scope 1 accounts for all direct GHG emissions.
  • Scope 2 accounts for indirect emissions associated with the generation of electricity, steam, or heat purchased from external sources.
  • Scope 3 allows for the treatment of all other indirect emissions associated with logistics, use of materials, supplies, and waste disposal, including emissions generated by service and manufacturing companies working for the reporting company and their upstream suppliers.
Scope 2 emissions

The Greenhouse Gas (GHG) Protocol divides emissions into the Scope 1, Scope 2 and Scope 3 categories, depending on the degree to which they can be influenced by the reporting company:

  • Scope 1 accounts for all direct GHG emissions.
  • Scope 2 accounts for indirect emissions associated with the generation of electricity, steam, or heat purchased from external sources.
  • Scope 3 allows for the treatment of all other indirect emissions associated with logistics, use of materials, supplies, and waste disposal, including emissions generated by service and manufacturing companies working for the reporting company and their upstream suppliers.
Scope 3 emissions

The Greenhouse Gas (GHG) Protocol divides emissions into the Scope 1, Scope 2 and Scope 3 categories, depending on the degree to which they can be influenced by the reporting company:

  • Scope 1 accounts for all direct GHG emissions.
  • Scope 2 accounts for indirect emissions associated with the generation of electricity, steam, or heat purchased from external sources.
  • Scope 3 allows for the treatment of all other indirect emissions associated with logistics, use of materials, supplies, and waste disposal, including emissions generated by service and manufacturing companies working for the reporting company and their upstream suppliers.
Scoris (SiRi) (Sustainable Investment Research International)

scoris GmbH is the German partner of SiRi Company (Sustainable Investment Research International Company Ltd.). Scoris last compiled a sustainability rating of all DAX 30 enterprises (Scoris DAX 30 study) in November 2007. Numerous investors see the SiRi database with its overview of internationally relevant data on sustainable investment as the basis for their investment decisions. scoris GmbH changed its name in February 2009 and is now known as Sustainalytics GmbH.

Shared Services

Central functions at Telekom. These bundle similar processes from different areas of the company and provide them to the entire Group as centralized, consolidated services.

Single RAN (Radio Access Network)

Single RAN (Radio Access Network) is a radio access network technology that digitally controls the radio connections of different mobile communications standards (2G , 3G , 4G) on one platform.

Smart metering

Smart meters are intelligent interfaces between the electricity grid and energy-consuming appliances. The smart metering service consists of the reading, processing, presentation and billing of power and energy consumption and other meters in industry and homes. Smart metering  reduces costs considerably and allows access to a mass-marketable service. In particular, it gives energy providers, meter operators, and the housing sector the opportunity to offer their customers innovative products and services, as it delivers consumption data virtually in real time.


Smartphones are cell phones which are equipped with additional computer functions and feature mobile Internet.

Social Audit

In order to embrace the Deutsche Telekom values throughout our procurement processes, special assessment procedures, known as Social Audits, are held on a regular basis.
The key components of these Social Audits are:

  • Risk assessment
  • Supplier self-assessment
  • Internal supplier assessment
  • Personal contact and constructive dialog with suppliers and business partners
  • Audit  report including audit evaluation.
Social business

Social business  is an economic concept whereby businesses follow the goal of solving social problems. At the same time, investors forego dividends from their investments. Profits are reinvested into the project as social gains.

Social Charter

Telekom's Social Charter , which was adopted in 2003, sets out rules that must be followed throughout the company in the areas of human rights, the environment, equal opportunities, health and safety, and the right to set up and join a trade union. It is based on the principles of the United Nations Global Compact  as well as on the conventions of ILO and OECD.


Spam , or junk, refers to unwanted messages, usually transmitted over electronic channels, that are delivered to the recipient unsolicited and are often used as advertisements or to propagate malware.

Split or VRV units

Split air-conditioning units have an external unit (capacitor/compressor) and an internal unit that is connected via refrigerant pipes (evaporator). VRV (Variable Refrigerant Volume) or VRF (Variable Refrigerant Flow) units make it possible to regulate the temperature in a building by changing the cooled volume or flow rate.

SPWG (Sustainable Procurement Working Group)

To ensure the implementation of a sustainable, universal procurement strategy, Deutsche Telekom set up the Group-wide Sustainable Procurement Working Group (SPWG) in 2007. The Working Group is the central point of contact for all issues and problems relating to sustainable procurement. The SPWG's primary aims include clearly mapping out a corresponding procurement profile, devising exacting social and environmental standards as well as monitoring the procurement process in accordance with these standards.

SRI (Socially Responsible Investments)

Socially responsible investment (SRI) refers to an investment strategy that is based not only on income potential but also on ethical considerations.


The stakeholder approach is an extension of the shareholder value concept used extensively in business management. In contrast to the shareholder value principle, which focuses on the needs and expectations of a company's shareholders, the stakeholder approach attempts to view the company in the context of its overall social background and reconcile the needs of the different stakeholders. In addition to shareholders, stakeholders include staff, customers, suppliers, the government, and the public at large.

Statement on Extractives

With its comprehensive "Statement on Extractives ," Deutsche Telekom intensified its commitment to responsible raw materials extraction in 2009. In this context, the company also formulated a clear position on the "Coltan issue".


STEM  stands for science, technology, engineering and mathematics.


STOXX Global ESG  Leaders is a stock index that assesses companies based on environmental, social and governance (ESG ) criteria. The index is based on a comprehensive list of sustainability criteria and allows investors to flexibly weight individual criteria.


The research and development institute that Telekom opened in Berlin in 2005. It is an affiliated institute of Technische Universität Berlin and gives top scientists from all over the world the chance to work in an attractive research environment. The institute's work focuses on the development of innovative services and solutions for Telekom customers.


TDM  (Time Division Multiplex) is a method used for transmitting signals and messages in which data is compiled and then transmitted as bundled data.

Thin clients

Thin clients  are workstations whose operating system and software are located on central servers. Thin clients  only run software that is required for accessing the applications hosted centrally.

Three-pronged innovation strategy

Our "three-pronged innovation strategy" is designed to generate growth from innovation in three different ways: through in-house developments, partnerships and equity investments. The central focus is placed on benefit for our customers.

TRI*M (Measure, Manage, Monitor)

TRI*M is a worldwide leading customer retention and stakeholder management system. It is used to assess and manage stakeholder groups on a common basis. It offers a number of different tools. Probably the best known is the TRI*M™ Index. It uses a single indicator to show the quality of customer loyalty. Depending on individual needs, it is possible to analyze the entire customer base or merely defined segments.

Triple play products

Triple play is a marketing term that has been in use in telecommunications since around 2005 to refer to combined offers of three services: audio-visual entertainment (television, video on-demand), (IP ) telephony and Internet.


Twitter is a website through which short messages are disseminated in real-time. Private individuals, organizations, companies and media enter their so-called tweets here, which are text messages containing 140 characters or less.

UMTS (Universal Mobile Telecommunications System)

Third-generation international mobile communications standard that unites mobile multimedia and telematics services in the frequency spectrum of 2 GHz.


United Nations Educational, Scientific and Cultural Organization.


Upstream  describes the data rate available for data streams from customers to the Telekom sites.

User ID

A user ID uniquely identifies an individual on a computer or other network device.

Value rates

The value rates offered by T-Mobile USA are mobile communications services that are not tied to purchasing an end device or other advance payment.


VDSL  represents a novel data transmission technology based on fiber optics. With VDSL , significantly higher transmission rates can be achieved for short distances than with transmission through normal telephone lines.


Vectoring  (VDSL2 vectoring) is a control technology that minimizes mutual interference caused by neighboring DSL lines. Vectoring  considerably increases the speed of data transmission via copper lines, making it possible to offer higher bandwidths cost-efficiently.


Vigeo  is one of the leading rating agencies for CSR analyses in Europe. Vigeo 's SRI products include ESI (Ethibel Sustainability Index) and the ASPI Eurozone Index (Advanced Sustainable Performance Indices). The latter rates 120 of Europe's leading sustainability performers.

WEEE Directive (Waste Electrical and Electronic Equipment Directive)

European Directive on waste electrical and electronic equipment (WEEE), valid in Germany since March 2005, which obligates all manufacturers to accept the return of waste equipment. T-Mobile introduced measures aimed at recycling old cell phones in 2003, and was thus one step ahead of the European Directive.


A Wiki  (short for WikiWiki or WikiWeb) is a system for websites whose contents can both be read as well as modified by users online. Usually, a simple markup language is used instead of HTML for editing the contents. The most well-known application is the online encyclopedia Wikipedia.

WiMAX (Worldwide Interoperability for Microwave Access)

WiMax is a new standard for regional radio networks of the third and fourth generation. WiMax is being considered both as a stationary as well as a mobile alternative or complement to DSL lines and UMTS connections.

WLAN (Wireless Local Area Network)

Wireless networks for mobile Internet access. The network can also connect multiple computers to each other or to a central information system, a printer, or a scanner.

WLAN/Wi-Fi hotspots

WLAN (Wireless Local Area Network) or Wi-Fi (a term introduced for marketing purposes) refers to a widespread technology for wireless data exchange including high-speed Internet connection via radio in a computer network. Hotspots give users access to the network.