G.711

Audio codec mostly used with digital land line telephone systems in either of two flavors ("a-law" or "u-law"), specified by ITU-T

G.722

Audio codec mostly used with VoIP applications, specified by ITU-T

G.723

Audio codec mostly used with IP telephony applications, specified by ITU-T

G.726

Audio codec mostly used with IP telephony applications, specified by ITU-T

G.729

Audio codec mostly used with IP telephony applications, specified by ITU-T

Gb

Gigabit

GB

Gigabyte

GbE

Gigabit Ethernet

Gbps

Gigabit per second

GBps

Gigabyte per second

GHz

Giga-Hertz

GSM

Global System for Mobile Communications, second generation (aka 2G) of mobile telecommunication technology

GSM-FR

GSM Full Rate, first voice coding standard for GSM digital mobile phone system, specified by ETS 300 961, replaced by EFR or AMR

GUI

Graphical User Interface