Can't remember the name of the company( from which I took the study about the mobile phones from), it was for a telecommunications company, and since 03 ( I think) they have installed ariels to allow such calls, this information was found with at first no relation to 9/11.Olly has given you guys some links. I highly suggest reading the loosechange guide one. It is extremely well written, is attributable and quite honestly completely destroys loose change.
Also please, somebody who is sceptical tell me how a 757 made a 40 degree abnking turn without the wings tearing off or it stalling , then I will shut up .
I don't believe anyone can give an informed opinion untily uo actually investigate for yourself, instead of watching 2 edited and IMHO awful documenteries. ( loose change has elements that are true, for instance the explaination of the pentagon crash stated that it skidded along the grass, yet there was NO markings on the grass, they either lied or are very fast at turfing in a disaster). The BBC documentary that was totally biased,as is loose change and doesn't give a balanced argument. It was riddled with ludicrouse ideas.
I may remind you that a lot of the people involved in the 9/11 for truth movement where actually there and experienced it. They are not crack pots.
http://www.911sharethetruth.com/images/wtc-7.gif , and for comparison a fire raged for 48 hours in one OLDER Japanese building, it had a weaker structural integrety(sp?), yet this fire had little effect to it's structure.
p.s. I don't believe it all, it's just certain aspects that I later researched on my own, for instance the flight tollerances of 757's .