So far it hasn't been at all, that was the point of the test: "The system had been operating in a trial mode, without publicity for three months, during which

So far it hasn't been at all, that was the point of the test: "The system had been operating in a trial mode, without publicity for three months, during which it received several genuine reports and no hoaxes, according to Samaritans." Doesn't sound too bad.