Hi, I don't think he means those little stickers you put on your phone. If I understand the OP correctly, he means those signal repeaters you attach to an external (outside) antenna and will then forward the signal into your apartment. These work very well, although I'm not sure I'd like to have a microwave radiation source in my living room.

I'm not sure if any consumer products exist for this (they do in the US, but I've never seen any in Switzerland). There's a company who offers such solutions but I doubt they'd be affordable for private customers:

http://www.sifax.ch/673.html

Changing the network might be a better solution. I myself live in an apartment where I only have reception in one room (which happens to be the office, which is fortunate). Unfortunately, this goes for all available providers.


Peter