Those of us who recall DOS and other command interfaces appreciate the invention of graphical user interfaces (GUIs): Graphical controls and displays make us more efficient and productive because they are intuitive, with little or no learning required. GUIs make life easier, whether one is writing code or playing games.
NanoVOIP: Mocana’s comprehensive developers’ suite for building enterprise–class security into VoIP devices and services
Mocana's NanoVOIP Developers' Suite is a comprehensive security solution for application developers and device designers trying to build secure VoIP products. NanoVOIP contains all of the protocols, algorithms, standards specifications and tools you need to turn an average VoIP implementation into a fully secure, enterprise-class encrypted voice, video and data solution. Better yet, you don't need to be a security expert to build secure products with NanoVOIP: our simplified API and common cryptographic code base, along with tens of thousands of lines of sample code and professional development support hide the complexity of crypto, making it easy for your team to roll out a secure VoIP implementation, fast.