what connection string are you sing to dialup up the phone? it'll be *99# something something also do you know what your at string is in modem options? will be +CDGCONT=1,2,3 or something...
thats how you can tell :P
i'd love a 3g phone but stuck with a GPRS one, so its a bit pony, but then all i use it for is emil and the odd remote desktop session