Which IoT devices are affected?

Any device that relies exclusively on 2G or 3G connectivity may be affected. Examples include:

• Smart meters
• Alarm and security systems
• Industrial sensors
• Asset trackers
• Payment terminals
• Vehicle telematics equipment
• Remote monitoring devices

Check your device inventory for modules supporting GSM, GPRS, EDGE, UMTS or HSPA. These are 2G or 3G technologies. Some devices support several network technologies. A device may therefore currently use 2G or 3G while also supporting 4G, LTE-M or NB-IoT. These devices may be configurable without requiring a complete replacement.