OsmocomBB provides a full-featured GSM protocol stack implementation together with other parts of a GSM baseband processor firmware such as hardware drivers and an actual feature-phone UI.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.
