by any stretch of the imagination, but I thought that the B/B router is 'pre-programmed' with the necessary dial-in number for the ISP who provides it and that this is a hardware stored item - not in memory or on a harddrive. It is also stored in a location that cannot be changed by dialler programs or hijackers.
I do not know of any way thst routers can be programmed to use premium rate numbers and most 'pay per view' sites require passwords etc. to be entered. Either I am wrong about hijackers or someone may have left a PC connected to a site that requires payment to be connected to it all over the weekend?