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Stop Answering Machines Wasting Our Money

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  How often have you rung a telephone number, an answering machine replies, and you hang up because you don't want to leave a message? Is it possible to design the system so the ringer is alerted by a particular ringing tone that an answering machine is switched on and will come on in say one minutes time if nobody answers the phone? We would then have the option of hanging up before the machine answers the call.
  It would save a lot of money. For example, in Australia where I live, if ten million people make five such calls a year, that's about ten million dollars simply wasted every year.
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