btnSMS Libaray is a C library that provides an easy interface for sending SMS messages through the Beyond The Net SMS service provider. Messages can be sent to nearly every country in the world with many different options.
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.