23-01-2013 10:19 - edited 23-01-2013 10:21
Looks like a nice little phone, but sorry I'm not sure how a dual sim phone works.
There are some tutorials on Youtube on how to insert a dual sim in other handsets, it might be silimar to yours.
I should imagine since the original poster is asking here we can assume they either don't have a manufacturer's user guide or they don't understand the instructions.
on 23-01-2013 10:21
If you scroll halfway down this Webpage,it "shows" you how to fit the 2 SIMs