Yes and no. The Ultra solution is a complete system - everything you need to run a fully functional call centre. So, even elements like voice recording, real-time monitoring tools, scripting package, full level support, etc. are included as standard. Therefore ‘no', you do not buy parts; you purchase the whole solution. However, for a variety of reasons you may decide not use certain elements, e.g. scripting; perhaps because you have your own package. Well, that's fine; Ultra will interface with your package easily enough, but if you should want to use the Ultra scripting package later on it is there ready to use. So ‘yes', you choose which parts to use.