2G
Technology & Computing abbreviation · Telecom
| Stands for | Second generation of mobile telephony |
|---|---|
| Categories | Technology & Computing |
2G stands for Second generation of mobile telephony, a telecom abbreviation.
Digital cellular networks introduced in the early 1990s, led by GSM, that added encryption, SMS text messaging and later basic data services. 2G remains in use in some countries for voice, machine-to-machine devices and emergency fallback.
Example: In the countryside my phone drops to 2G, so it can make calls but barely load email.
Usage notes
The first GSM call was made in Finland on July 1, 1991. US carriers such as AT&T shut down 2G networks from 2017, while many European operators planned to keep 2G running longer than 3G to support older devices and alarm systems. Data speeds of GPRS and EDGE, often called 2.5G and 2.75G, reached at most a few hundred kilobits per second.
Related abbreviations
More telecom abbreviations
- 10DLC – 10-digit long code
- 1G – First generation of mobile telephony
- 3G – Third generation of mobile telephony
- 3GPP – 3rd Generation Partnership Project
- 4G – Fourth generation of mobile telephony
- 5G – Fifth generation of mobile telephony
- 6G – Sixth generation of mobile telephony
- 802.11ac – IEEE 802.11ac (Very High Throughput Wi-Fi)
- 802.11ax – IEEE 802.11ax (High Efficiency Wi-Fi)
- 802.11be – IEEE 802.11be (Extremely High Throughput Wi-Fi)
- 802.11n – IEEE 802.11n (High Throughput Wi-Fi)
- A2P – Application-to-person