Browse free open source Communications software and projects for Linux below. Use the toggles on the left to filter open source Communications software by OS, license, language, programming language, and project status.
An easy-to-use anti-spam email gateway
A free and reliable P2P BitTorrent client
Anti-Spam SMTP Proxy Server implements multiple spam filters
Weak signal ham radio communication
Hewlett-Packard's Linux imaging and printing software
Issabel PBX - Unified Communications
An extremely powerful and configurable BitTorrent client
PTP IEEE 1588 stack for Linux
Ham Radio Digital Modem Application
Windows eml and mbox viewer.
You can message and share files inside your intranet without a server.
Open source software for live streaming and recording
Modbus TCP,RTU Master Software.
A cross-platform G-Code sender for GRBL, Smoothieware, etc.
The classic email sending library for PHP
Protects you from spam mails and virus mails effectively with milter
A universal instant messaging (IM) program
32/64 bit multi-platform Ethernet S7 PLC communication suite