I had a recent conversation with an IT manager at another company about the pcAnywhere. He claims thast pcAnywhere can work only within a single network, and it can't reach any computer outside of such network. For example, I won't be able to reach any of his computers and he has no idea if there are any firewall settings that could help to let the pcAnywhere through. According to him only the TeamViewer or Webex will be able to connect. Is he right?