If you go back to the forums list page and do a search for cell phone repeater you'll find several discussions .  Here are a few

http://talk.newagtalk.com/forums/thread-view.asp?tid=135975&posts=10&#M965054

http://talk.newagtalk.com/forums/thread-view.asp?tid=149666&posts=18&#M1069158

http://talk.newagtalk.com/forums/thread-view.asp?tid=120837&posts=12&#M854517

http://talk.newagtalk.com/forums/thread-view.asp?tid=116421&posts=12&#M825246

http://talk.newagtalk.com/forums/thread-view.asp?tid=143876&posts=7&#M1028049

http://talk.newagtalk.com/forums/thread-view.asp?tid=136261&posts=9&M967443

http://talk.newagtalk.com/forums/thread-view.asp?tid=135975&posts=10&#M965054