Voximplant is a communications platform as a service, it allows developers to add real-time communications features (voice, video and messaging) in their applications without a need to build any backend infrastructure. Voximplant architecture is designed for serverless: developers upload their JavaScript code into our cloud and uploaded code is being executed automatically when a call arrives at the platform or when an HTTP API command is executed. A call can arrive at the platform from a phone network, from a SIP device or application, and from Voximplant Web or Mobile SDK.