Hi,Everybody is already aware that Dataone usage details can be viewed from the Dataone Portal page that gives login date&time with data UL/DL etc. My question is 1) where does bsnl records such data, is it in the relevant exchange or centrally somewhere else. 2) Where is the password authentication done, at the exchange or elsewhere. This is because, I, like many others, have logged on with the id/pwd of my friend's connection who stays in another exchange. So it logically follows that the password server is situate centrally and not in the relevant exchange.3) Is it possible to know (from the point of view of BSNL) from which tel no. the logging in is done. That is, if I log in with my friend's id from my home, can BSNL find out (later, of course) that it was indeed logged on from my computer or from my telephone line?4) Can BSNL prove by any means that the data usage shown by them is sacrosanct?? 5) If I sense that usage data shown by BSNL is not by me, is there something fruitful that can be done??