Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
PhonerLite - PhonerLite enables your PC to use it for internet telephony (VoIP , Voice over IP, SIP).
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
tSIP - tomeko.net/software: SIP client for Windows.
ZBrush - ZBrush is a digital sculpting and painting software solution.