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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.