how to disable auto 3G/internet calling

[levisq1]

hi there

each time i go into my phones "people" application, and then when i try to make a call like in image_1 i60.tinypic.com/2hcdg01.jpg
and when I press the button in the red circle,

i get the image_2 i60.tinypic.com/2hcdg01.jpg
notice the few other icons at the lower right..

and the thing is, the phone wasn't like this before. i made some changes without knowing and now can't reset this back since a year!!! )

how can i disable this so that when i press the button in the red circle, it makes a standard call by default without asking me bunch of things..

thanks a lot in advance!