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CDMA2000 1x+EVDO Open Source Cellular Network

Lightweight cellular modem host AT library

Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network

Cellular Survey Android App

Awesome-Cellular-Hacking

inferring regulatory cellular dynamics

tsshd is a UDP-based SSH server built for unreliable networks. It supports seamless roaming across networks and IP changes, and works well on high-latency links such as cellular connections and unstable Wi-Fi.

CellGuard is a research project that analyzes how cellular networks are operated and possibly surveilled

A portable, battery-powered cellular conversion for classic rotary telephones—fully reversible, with no modification to the original phone.

Vocat is an open-source web control panel and engineering toolkit for Quectel EC20/EC25-class cellular modems. It combines modem discovery, live radio status, AT and USSD terminals, SMS, WiFi Calling, eSIM management, network selection, proxy routing, notifications, audit logs, and release automation in one self-contained service.

Use cellular network, SMS, and calls on your Mac.

Self-hosted SIM/eSIM gateway for VoWiFi calling, SMS, cellular data and isolated regional egress