The module is the Walter, by DPTechnics out of Belgium. It’s fully open-source and contains a ESP32-S3 for WiFi and BLE plus a Sequans Monarch chip for GSM and GNSS connectivity.

Real Time Home Security System using GSM Technology-An Anti-theft System! This project deals with the design & development of a theft control system for home, which is being used to prevent/control ...

Motorola has announced the deployment of its GSM communications network for Bharat Sanchar Nigam (BSNL), covering 417 towns, cities, villages in the four southern states of India ...

Danlaw’s DL750 includes Telit’s ultra-compact GSM/GPRS cellular module, the GE865-QUAD. The product is a self-contained consumer installable data coll ...