This paper proposes a new extended framework for web VR tours of Point Cloud Data that enables network collaborations. The authors have already developed frameworks for web VR tours in navigation mode using 360º videos and in walk-through mode using 360º images. Also, the authors developed a framework using OpenVSLAM for web VR tours using 360º images/videos. Furthermore, the authors extended the OpenVSLAM-based framework to enable network collaborations by adopting threejs-webrtc. Indeed, the authors have also developed a framework for web VR tours in walk-through mode using Point Cloud Data (PCD). This time, the authors also extended the framework to enable network collaborations by adopting threejs-webrtc. This paper introduces the framework for web VR tours of PCD and explains the extended framework for web collaborative VR tours of PCD.