Hey, I've bought this cellphone

H6 3.2" Touch Screen Android 2.2.1 Dual SIM Quadband PDA GSM TV Cell Phone w/Wi-Fi/AGPS - White - Free Shipping - DealExtreme

there is written that it support 850mhz, However I can't connect to network like this
I coudn't find anything over the settings menu to switch it
Maybe there is some solution for it?
I have not switched room (it is android 2.2).

Thanks in Advenced!