mmMMmmmM, wen my cordless fone fell off tha roof and the antenna broke of i replaced it wiv a whole stack of alumin foil stuffed where antena got snapped... and that workd... so lng as u din touch the stuf at all.. or move so made it kinda useless lolz, but yeh it sounds plausible id reckon... coodnt hurt 2 try(i hope)
all the signal boosters you can buy are foil with sticky tape and they do work and do not screw your phone. So I have an old nokia and a poor signal at home. I gave it a go and it works. not the best but from 2 bars to 3 bars with the foil and the phone works ok.
You might also try wrapping your head in foil. The added reflective properties of the foil on your head will not only increase signal reception but also lower expected absorption of radioactive waves from your handset.
In addition, if you frequently carry your phone in your front pocket you might also try wrapping your genitals in foil to protect them from radioactive absorption. In addition, it will add to the receptive signal qualities when you are carrying your phone.