Browse free open source C Communications Software and projects below. Use the toggles on the left to filter open source C Communications Software by OS, license, language, programming language, and project status.
Cellular manager for mobile phones/modems
VCF vcard, XML xcard, JSON jcard;View, Edit, Convert, Export, CSV, QR
SOGo Zero-Effort-Groupware
Multiplatform Ham Radio APRS and Mapping Program
Microsoft Exchange compatible server and client libraries
software for email automation (newsletters, transaction mails, etc.)
Smith chart intended for educational use