This presentation will give a list of design criteria an ASIC Design house need to look in the process of deciding to take the complex Bluetooth specification and implement everything from scratch or to integrate reusable Intellectual Property for integration into their SoC. The presentation also include experience from a typical embedded development project where reusable Bluetooth Baseband Intellectual Property both for HW and SW is used with the Bluetooth Technology from Ericsson as example. This pper is a compressed summary.