How to Remote Control Android smartphone, if not in same subnet

I'd like to "Remote Control" my Android 2.3.x (Oxygen 2.3.2 ROM) from my PC. I know that there are VNC servers available *(previously available via https://market.android.com/details?id=org.onaips.vnc)* and also apps like Remote Web Desktop *(previously available via https://market.android.com/details?id=net.xdevelop.rm)* . This works fine, but only if the mobile phone and the "controlling PC" are in the same subnet, or if traffic from PC -> mobile phone is routable. At work, this isn't the case for me… :/ **The WiFi devices are in a separate subnet, and the *office network devices cannot reach the WiFi devices*.** That's done on purpose and is to be accepted as an unchangeable fact (at least for the time being). If the mobile phone were a normal PC/Mac/Linux system, I'd install TeamViewer on it and be all set. But there's no *TeamViewer server for Android*, is there? Well, what are your suggestions? How can one remote control the Android smartphone from a Linux (or any…) system, if the PC doesn't "see" the mobile phone? I do have USB and Bluetooth available, if this helps. Cheers.