Attach procedure signaling in a regular NB-IoT deployment.
LTE IoT 2 Click Embedded LTE IoT Communication Solution - MikroE
Wireless Connectivity Click Boards (6) - MIKROE
Choosing IoT LTE Standards: Cat 1 and Cat 1bis Vs. NB-IoT and LTE-M
Cellular:Introduction to Cellular LTE CatM / NBIoT - stm32mcu
Link.ONE LTE-M, NB-IoT, and LoRaWAN all-in-one LPWAN devkit is programmable with the Arduino IDE - CNX Software
BG96 NBIoT mode - episode 2 - raw UDP data exchange and network status signaling
NB-IoT
Click Boards (89) - MIKROE
NB-IoT Archives - EE Times Asia