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Ghost call
A ghost call is a telephone call for which, when the recipient of the call answers, there is no one on the other end of the call. The term is also used in managing IP PBX systems. Ghost calls on the lines that cannot be explained or are some residual output of one Real-time Transport Protocol or RTP stream interacting with the PBX. == Causes == This is generally caused by a neglected Autodialer or indirectly through consequences of restrictions applied to autodialers used for telemarketing by the FCC that restricts how long they can tie up a phone line without causing inconvenience to the receiver or blocking emergency services. It could also fall under the accidental Pocket dialing category.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Ghost call」の詳細全文を読む
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