Quake3World

How do I build a teleporter that shows whats on the other side? I found the teleporter model with the surface properties but how do I make it teleport my character to a certain spot and that spot be reflected on the portal surface?

I tried this tutorial:
http://bubba.planetquake.gamespy.com/camera1.html

But it doesn't work. Surface of my teleporter model (one of the misc_objects) shows the destination but doesnt teleport to it.

that tutorial only covers the making of the camera effect
you'll need to seperately add the teleport functionality
either check a q3 map that comes with radiant, to see how they did it
or place a trigger_teleport brush connected to a misc_tele_destination entity