Whatever, I though this story was both interesting and big fat disappointment. Didn't we see this in the late 90's movie SCREAM 3?

Computerised speech capable of mimicking any human voice is in danger of unleashing a form of "vocal terrorism", where disinformation is spread by hacking into telephone networks, British scientists warned today.

Atleast they called it "Vocal terrorism" and not "Crank Yanking Hackers" I guess give it time and they will be come "PHlarynx"