Web Real-Time Communication (WebRTC) is a technology enabling web browsers to connect directly to each other, and send information e.g. video or text messages peer-to-peer. This technology is currently being implemented in the major browsers, and is under rapid development. Unified communications seeks to bridge the gap between different communication protocols, and allows users to communicate across technologies. An existing web application prototype allows users to communicate with audio and video. Users can connect with a web browser using WebRTC or a phone using the telephony network. The goal of this thesis is to improve the functionality of this existing prototype, and experiment with and research WebRTC technology and applications. The original prototype uses a centralized server based structure. The improvements in this thesis utilizes the peer-to-peer benefits of WebRTC. The improvements include file sharing, whiteboard and screen sharing.