Is there a way to run my Iphone with AT&T without charging me Extra 30$ for EDGE,I had my Iphone 2g around a year ago I bought it from the USA but,as I moved to Egypt I unlocked it and it worked without any extra fee for the EDGE there on the local networks there,but when I came back to the USA I my brother gave me one line of his family plan that doesn't include any Iphones in it,but as I put the AT&T sim card in my Iphone he was charged extra 30$,and I dont want to use the EDGE I want to turn it OFF,and Im asking is there a way to go around and use my unlocked Iphone without paying the extra 30$.

Thanks

obt,1.1.2-updated to 2.1