Hello Rene,
Hubgets is not built on Amazon services. We have created Hubgets on top of our own Unified Communications platform, VoipNow.
Hubgets leverages both SIP and WebRTC technologies, fusing together all your communication and collaboration channels and making them accessible from a single, intuitive interface.
WebRTC enables browsers and mobile apps to do Real-Time Communications (RTC), bundling text, voice and video in a single package. You don’t have to install a separate app to harness this power – it works in a typical web browser like Chrome or Firefox.
Another perk of theis architecture is that Hubgets Enterprise can be installed on your infrastructure/on the infrastructure of choice of your customer, so you can customize it as your business requirements demand. There is a lot of freedom to choose what works best for the business users of Hubgets, based on the product architecture.