You'll need (a) your own wire to the world outside the building (connecting to the phone or cable network) or a (b) wireless connection to a satellite or the various mobile providers (like Verizon or AT&T).
If your phone doesn't work inside the building and they won't let you install a phone or cable line, you're out of luck.
idc if this sounds fake to u id appreciate if u humored me for half a second
im in a big isolated building where every thing inside is connected wired or unwired to a biiiig computer in the center
it can think and it wants to kill me so im in a rush here
is there some way to make another internet connection that the computer cant sense or see or wtvr?
im not a computer guy im a psychologist and i have no clue what im doig but i need help please