OpenPHY - Real time over-the-air LTE signal decoding tool

OsmoTRX - GSM base station transceiver

Osmocom implementation of 3GPP Mobile Swtiching Centre (MSC); mirrored from https://gitea.osmocom.org/cellular-infrastructure/osmo-msc

GSM Base Station Controller; mirrored from https://gitea.osmocom.org/cellular-infrastructure/osmo-bsc

Open Source Signaling Firewall for SS7, Diameter filtering, antispoof and antisniff

TurboFEC - SIMD vectorized LTE turbo and convolutional encoders and decoders

An Open-source LTE Downlink/Uplink Eavesdropper

Open source 5G core network based on 3GPP R15

Map 2G/3G/4G and more cellular networks in real live with a simple smart phone, pretty much like osmocomBB monitoring feature.

LTE SDR cell scanner optimized to work with very low performance RF front ends (8bit A/D, 20dB noise figure)

This program show you IMSI numbers of cellphones around you.

RFSec-ToolKit is a collection of Radio Frequency Communication Protocol Hacktools.无线通信协议相关的工具集，可借助SDR硬件+相关工具对无线通信进行研究。Collect with ♥ by HackSmith

Gnuradio blocks and tools for receiving GSM transmissions

Wiki for overriding IMS settings to enable VoLTE/VoWiFi using Carrier Privileges in Android phones