I own a Nokia 6350 and live in a 5th wheel trailer which has metal sides, roof and belly pan, the only opening are the metal screened dark mylar covered windows, my reception is near perfect all the time, so good in fact that I am considering stopping my land line telephone service, the nearst cell site (that I know of) is over a mile away, unfortunatly Cell Phone Review sites dont review the most important aspect of a cell phone, that is the receiver sensitivity and selectivity, a full featured phone with a poor receiver is a worthless phone.