why my iPhone 4s doesn't have Siri?

Great point. Probably a 4.

mine also the same!!!! mine is ip4s white 32GB

in settings-general have no siri.

i olso check in restrictions and olso the same, NO SIRI.

if i hold home button i only get voice control.

can anyone help?????

sorry my english not good enough.

From whom and when did you purchase your phone?

I buy it from my friend and i did around november or december 2011. Why???

Can you go to settings, general, about and tell us what model number you have

MC679LL

Your iPhone is a 4 not a 4S.

Yep that an iPhone 4 32gb white. Not an iPhone 4s

iPhone 4 does not support Siri

That's why.

How did u know? But my lock button is defferent with ip4, and mine doesn't have sim slot. So what are my ip????

So how do i check ip for 4 or 4s????

It's easy most of the time you just check the model number. In you case you just said you have no sim card. So that means you have a Verizon iPhone 4.

Where i get to check my model number? And how about my lock button possition???

You can find the model number at settings, general, about.

The lock buttons are the same. However the silent switch is a bit lower down then the iPhone 4 gsm model