HI all
i am creating an iphone application for jailbreak iphone.
in which i want to use
CoreTelephony framework but when i use it i am getting these errors.

Undefined symbols:
"CTTelephonyCenterGetDefault()", referenced from:
_CoreTeleInitialize in CoreTele.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [CoreTele.dylib] Error 1
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