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Re: mysterious calls
You see a lot of talk on forums all over the place about this "press 9" scam and the consensus is that it is a urban myth although everyone has said that they don't press 9 but hang up. What puzzles me is why so many calls are made if it is a myth. Someone must be paying for the calls I would have thought. If someone calls you the call remains connected for quite a time if you hang up but the caller doesn't, which fits in with what a number of people who have received these call report. Could it be that the caller has found a way of transmitting data along with the call that is triggered when the tone that 9 being pressed is heard. Inaudible data has to be sent with every telephone call for billing purposes including both numbers, time and duration. Has someone discovered what this data is and injected false billing data in with the call that charges the number being called as having phoned a premium rate number that the scammer owns? Anyone with an in depth knowledge of telephony that could say if this is possible?
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