I use Nokia C1 02 cell phone, but now I face signaling problem when I am in my room. I take it to every corner of my room while I use it for talking then still fail to get proper signals for clear conversation. I am not in condition to buy a new cell phone so looking for some signal booster for cell phone. do you have any idea that from where can I get the RF signal booster. And also give me some tips for installing it in my room. If any one of you have used it ever that please tell how efficient it is.