- Access and Interconnection
- Broadband area
- Ducts Access
- Digital Television
- Electronic Commerce
- Emergency Communications
- Electronic communications - market analysis
- Electronic communications - regulatory framework
- ITED - ITUR
- International Activity
- International Roaming
- Leased Lines
- Local Loop Unbundling
- Mobile Networks and Services
- Numbering, Names and Addressing
- Postal area
- R&TTE Regulatory Framework
- Spectrum management
- Telephone Service at a Fixed Location and Universal Service
- URSI - Portuguese Committee
Glossary of electronic communication and postal services
G - 4GTerm used to describe advanced mobile communication systems for wireless broadband services.
G- 2GTerm used to describe the second generation of mobile communication systems, namely GSM.
G- 3GTerm used to describe the next generation of mobile communication systems which succeeded second generation (2G) on the GSM cellular networks. It represents an evolution of communications based on circuit switching for broadband and high speed mobile networks, in which data is transmitted in packets.
GALILEOEuropean satellite-based navigation and positioning system - European Satellite Navigation System.
GalleryCompartment or corridor containing supports or closed spaces suitable for tubes and their connections, the dimensions of which allow people to move throughout its length.
GatewayInterface used in data communication between different networks. It enables the adaptation of signals and messages from one network to the protocols and conventions of other networks or services, thereby establishing intelligible communication.
Gbit/s - Gigabits/sUnit to measure the transmission speed of digital information (230 bits per second).
Gbytes - GigabytesUnit to measure the quantity of digital information (1 Gbytes = 1,024 megabytes = 230 bytes).
Geographic numberA number from the national numbering plan containing certain digits of geographic significance, used for routing calls to the physical location of the network termination point (NTP).
Geo-Stationary OrbitTrajectory followed by a satellite, in which it travels in synchrony with the rotation of the Earth, so that it appears stationary in the sky. A stationary antenna situated on the Earth can remain always pointed at the satellite.
Geostationary SatelliteA geosynchronous satellite whose circular and direct orbit lies in the plane of the Earth's equator and which thus remains fixed relative to the Earth.
Latest update: 10.12.2009
GHz - GigahertzUnit of frequency equal to one thousand million Hertz (10^9 cycles per second).
GLONASS - Russian Global Orbiting Navigation Satellite SystemRussian Global Orbiting Navigation Satellite System - Russian Satellite Radionavigation system.
GPRS - General Packet Radio ServiceEvolution of the GSM system, based on packet switching, which enables transmission at speeds of up to 115 Kbps.
GSM - Global System for Mobile Communications2G mobile telephone. Standard used in 2G digital mobile communication systems in Europe and Asia which specifies how data is encoded and transferred through the spectrum. GSM digitalises and compresses data related to a connection, transmitting it through a channel together with that of other users, using time-division multiplexing.
ANACOM Conference 2013 - Financing the future, 01.07.2013
World Radiocommunication Conference 2015 (WRC-15), Geneva, 2-27.11.2015
Positions, clarifications and statements issued by ANACOM between 2004 and 2013
Access the services which we provide electronically
FAQ on Audiotext, Digital Terrestrial Television - DTT, International Roaming, Licences for land mobile service private radiocommunications networks, Local Loop Unbundling, Message-Based value Added Services, National Numbering Plan, Operator Portability, R&TTE Regulatory Framework, Telephone Service at a Fixed Location and Universal Service, VoIP