...I don't program much VOIP any more, and pretty soon I might have thrown away all my hard drives with this code on it. So I figured I would put my work somewhere in case someone needs a SIP video phone. It has been used to make calls as an ActiveX plugin, but it is pretty easy to put inside a Mozilla/Chrome plugin to make browser-based calls from a web page as well. You can drag-drop it as a control into any Windows program in Visual Studio. Do what you want with it, no need to bother me about it.