DIY Cell Phone Reception Booster

Ever walked in urban canyons while talking on your cell phone, only to be cut off in mid-coversation due to the lack of signal strength? If you are a fan of a little DIY project, there is this cell phone reception booster exercise that you can indulge in which actually seems to work far better than commercially available solutions (which I think are a scam). I’d try this with an old handset first if I were you for a trial run before hacking a new cell phone.