Have you ever been in a virtual world? Virtual worlds are worlds that exist in another dimension. There are those worlds where people can jump in and pretend that they are somebody else. The same idea applies to virtual office. A Virtual PBX can be set up so that some people think that you are somebody different or that you are in some other place than you really think are. These days almost everybody is in some sort of virtual world of his. Probably the best example of a virtual world are online games or social networks. they exist only online and they allow people to connect to them whenever they feel the need to do so.