Trying to sort a small issue out with my iPhone and came across a US site that started talking about using a special network service code that showed field strength. For AT&T for example, it was *3001#12345# (yeah, yeah try it - but it doesn't do anything here )
It got me thinking. There are probably identical codes in use here to diagnose similar network/consumer issues or whatever. The consumer ones are fair enough (CND offf etc etc) but, does anyone know of "the others" if they exist ? Any friendly optus telstra mobile techs looking ??