hi people..... i recently got an xperia ray... i'm totally new to android and se and i need your help to understand some things.
(i've been a symbian child for a very long time and now all these se and android ways are totally new and unknown for me)

so for starters, i got a couple of basic questions.....

1. 3G signal is not very clear in this phone..... in network settings i see GSM and WCDMA.... is this the 3G? if not what exactly is the difference?

2. i see a front camera, but i don't see (neither in phone, nor in user manual) a video call feature..... i have been reading that video call was supported in this model. considering my first question does it has to do something with that? (i have my settings in both and the same sim card in a nokia phone gives me full 3G signal)

i also have the data traffic disabled... should i enable it to have a 3G signal for video call?
and when i have the data traffic enabled i get a sign of "H" in the upper softkey bar (the one that can be dropped down), while the phone's user manual doesn't mention "H"... it meantions G, 3G, even E, but no H.......

can u help me guys? one of the 3 reasons i got this phone was the front camera and the ability for video calls....... i'm so frustrated at the moment... i regret the time i decided to check android out...... but i know that android or SE can't be that bad.........

thank you in advance.......