X61: Antenna on the side of the LCD. What is it & what for?

Just bought X61 (#7675 CTO) from ebay. I noticed there is antenna like on the side of the LCD, but top part of antenna is missing.
I get my internet like in other machines without any problem. My question is:
1) What is this & what is it called?
2) Am I missing something (it looks that it is not working)?
3) Do I need it & what for?
3) How to check & what to do to make it working?
Thanks.

Not clear what you are asking
However be aware the iPhone only has ONE external speaker at base of iphone the other grill is a microphone
The speaker is on right below screen

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#1 http://dl.dropbox.com/u/1477936/apple/DSC_0751.jpg (need to make it 100% to see)
#2 http://dl.dropbox.com/u/1477936/apple/DSC_0754.jpg (need to make it 100% to see)
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