Galgje G.711 G.991 G.992 Galileo G.dmt GERAN GGSN GIF GIS Gigabit Ethernet Giga Gigabit Wi-Fi GigaPort G.Lite Globalstar GLONASS GMDSS GMSC GNSS GMPCS GPRS GPS Greenpoint Grondgolf GSM GSM1800 GSM1900 GSM 1X GSMA GSM-P GSM-Parkeren GSM-R Guardband