Blynk library for IoT boards. Works with Arduino, ESP32, ESP8266, Raspbe...
This program show you IMSI numbers of cellphones around you.
Awesome-Cellular-Hacking
MicroPython for ESP32 with psRAM support
Gammu All Mobile Management Utilities
Ai-Thinker A9/A9G GPRS (with GPS(A9G)) module C development SDK
Lightweight cellular modem host AT library
Mobile Statuion side GSM implementation; mirrored from https://gitea.osm...
gsm module library for STM32 LL
Library sim800l for Arduino UNO (maybe sim900l work)
Example of using ESP32 with GSM modem and lwip+pppos
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Ported and cleaned up version of the ATCommandTester from m2msupport.net
A Go driver for AT based modems
STM32 LL AT-Command parser