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Message: <blockquote data-quote="Wolverine GTR" data-source="post: 16376636" data-attributes="member: 158020">Missing Malaysia Airlines Flight MH370: Passengers' Mobile Phones Ring But Not AnsweredReports are emerging that some  cellphones of passengers on the missing Malaysia Airlines Flight 370 are  ringing — but no one picks up. However eerie this seems, it may have  more to do with how mobile phones and networks operate than any deeper  mystery.According to a China.org.cn report,  19 families signed a statement saying that dialing their loved ones'  phones leads to a ring, rather than going straight to voicemail, as one  would expect of a phone in airplane mode or otherwise unable to be  reached.But it's not that simple. When you hit the call button on some phones, a ringing tone begins immediately."However,  that does not mean the phone you are calling is ringing yet," wrote  wireless analyst Jeff Kagan in an email to NBC News. "The network is  searching for the phone. First based on where it last was, then it  expands. Then if the network can't find the phone, the call terminates."The  search for the party on the receiving end may be nearly instantaneous,  or take a few seconds — during which time the phone (depending on model,  network and other variables) may or may not make a ringing noise to  indicate to the caller that it is attempting to make the cell  connection. So while it may ring four times for you, the person you're  calling may only hear it ring once -- or not at all.If the phone you're calling is in  airplane mode, or is off, out of range, or destroyed, the network may  still take a few seconds to confirm it's unreachable.In a video from a Chinese news channel  purporting to show one of the calls in question, the caller's phone  appears to ring for only a second or so before failing. The family  members who were able to "get through" or "connect" to a missing  person's phone, which subsequently "hung up," could very possibly be  experiencing this caller-side ringing effect, Kagan said.</blockquote>

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