In the face of mounting political unrest, Egypt took the unprecedented step of severing all Internet connections and shutting down its cellphone services—with the cooperation of international firms.

source

Sure enough I tried to access an egyption website, and it timed out.
Apparently dial-up can still work to access the interwebz out of Egypt. I don't think it will ever happen in Australia but maybe I should buy a dial-up modem just in case I feel like listening to it mate with my phone line again.