Global System for Mobile communications (GSM) is a second-generation digital cellular network standard that replaced analog systems. It uses time-division multiple access to multiplex several users onto a single radio channel. Though largely superseded by newer standards for data, it remains a foundational technology for global voice roaming and basic text messaging.
We need to ensure the remote telemetry units have a fallback to GSM if the LTE signal drops.
Related terms
2G
The second generation of cellular network technology that introduced digital voice encryption.
CDMA
A channel access method where multiple transmitters send information simultaneously over a single communication channel.
SIM
A Subscriber Identity Module card that authenticates a device on a cellular network.
UMTS
A third-generation cellular standard based on wideband code division multiple access.