Ok, then try this: All these overseas call centres doing inbound marketing rely on computer dialing systems which randomly dial numbers till they get a hit - when the system detects a pickup at the called number it it then 'pops' the call to the first available operator (its forced on the operator by the system). There is always a lag between when the system calls you and when it connects you to the operator. If you pickup the phone and say hello the system assumes your caught and pops the call to an operator (you can actually sometimes here the call centre background noise when this happens through the open mike of the operator). The trick is to hang up during this switch period, don't say anything just hang up. Most people can't brign themsleves to just pickup the phone but not say anything, so you can pickup, say hello (but that's all) and if you don't get an immeadiate response from someone you know just hang up before the system can pop the call to an operator. These Overseas call centres have to contend with lag and that's their weakness.
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