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Malaysia airlines flight 370: Passengers phones still ringing.

Mackdog

Senior Member.
I don't think anyone has started a thread about this yet, so I wanted to go ahead and start one. I have not heard too many theories from the likes of Alex Jones or any other major CTers yet, but today I read several times about how the families of those missing on flight 370 have come out and said that their cell phones are still ringing on the other end and that social networking sites show that they are still online via their smartphones. This is something that intrigues me because it seems like it's possible that the plane has been diverted to some unknown location due to a hijacking if this is true. If not, is it possible that phones could still ring even if they are at the bottom of the ocean?

http://www.washingtonpost.com/world...b78642-a862-11e3-b61e-8051b8b52d06_story.html


This is from the article:

There were conspiracy theories and morbid calculation of survival odds, which grew ever darker as the days dragged on.

One of the most eerie rumors came after a few relatives said they were able to call the cellphones of their loved ones or find them on a Chinese instant messenger service called QQ that indicated that their phones were still somehow online.

A migrant worker in the room said that several other workers from his company were on the plane, including his brother-in-law. Among them, the QQ accounts of three still showed that they were online, he said Sunday afternoon.

Adding to the mystery, other relatives in the room said that when they dialed some passengers’ numbers, they seemed to get ringing tones on the other side even though the calls were not picked up.

The phantom calls triggered a new level of desperation and anger for some. They tried repeatedly Sunday and Monday to ask airline and police officials about the ringing calls and QQ accounts. However unlikely it was, many thought the phones might still be on, and that if authorities just tracked them down, their relatives might be found. But they were largely ignored.

According to Singapore’s Strait Times, a Malaysia Airlines official, Hugh Dunleavy, told families that the company had tried calling mobile phones of crew members as well and that they had also rang. The company turned over those phone numbers to Chinese authorities.
Content from External Source
 

Technology industry analyst Jeff Kagan talked to us this morning about what happens when cellphone calls are made.

"When a customer calls another number," he said, "the carrier has to decide what to do next."

Basically, it starts searching for the phone that's being called.

While the phone company's doing that, it sends a ring — or two, or three, or more — to the person who initiated the call. The phone company does that, Kagan said, "so that the customer doesn't hang up" while the search for that other phone is underway.
Content from External Source
http://www.npr.org/blogs/thetwo-way...hones-do-not-mean-malaysian-passengers-are-ok
 
If not, is it possible that phones could still ring even if they are at the bottom of the ocean?

Try turning your phone off (or put it in airplane mode), then calling it from another phone. You will hear it "ringing" through the other phone.

And I suspect that the QQ status just means they have not logged out.
 
On the JREF site there is a thread each month for quotes found on the internet that display ignorance and are funny.

One such a few years ago was from a conspiracy theorist who was convinced that certain posters must be govt agents. His 'proof' that according to his favourite forum there were several posters who had been continuously logged on for weeks or months.

'nuff said.
 
This is totally normal. I don't know if anyone else has experienced this, but there are times when I lose my phone temporarily in my home or my wife does. So we ask one another to call our phone so we can hear the ring tone to help us locate it. When I dial my wife's phone or vice versa we can hear the phone ring up to 4 times from the caller's phone before the lost phone's ringer is hear once. I don't know if that helps.

I found this source on yahoo, don't know how reliable it is but the guy claims to work for a Swedish Telecom company; The question was about; If the phone's battery is dead, will the phone still ring or go right to vm

No, it does not always go straight to voice mail!

There is a timer that the providers set in their network called T3212. It can be set anywhere from 6 minutes to 24 hours (most providers have it set anywhere from one hour to four hours).

Anyway, this timer is like a "roll call". Let's say that it's set to four hours. If your mobile does absolutely nothing for four hours, it automatically sends a message (it's almost like a SMS) to the network and tells it "I'm still here!"

If the mobile doesn't send this message, and the four hours goes by, then the network will mark this mobile as "detached" which means that incoming calls will go directly to voice mail. But until the timer expires, the network thinks the mobile is still available and will try repeatedly to reach the mobile and, after eventually being unsuccessful, go to voicemail.

What could have happened is that his mobile sent the message "I'm still here" to the network and that was just enough to kill the battery, so the network thought he was still online for the next four hours, when his battery was actually dead.

So, maybe give him the benefit of the doubt this one time. Mobile networks are very complicated things...

PS By the way, when you turn your mobile off, before it actually turns off, it sends a different message to the network, saying "I'm off now, if anyone calls, don't try to reach me, go straight to voice mail." So that's different from the battery dieing.
Source:
I work for a large Swedish telecomms firm and I teach engineering courses for them.
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In addition, Jason, you are calling from within the same area that the lost phone resides in. Your call is not searching for a phone that is in another city, that last reported "here I am" to a tower in another far away exchange or area code.

It is surprising to many that even for wired phones the sound you hear of the distant phone ringing is not an indication that the distant phone is actually ringing. Sometimes the opposite happens and a person making a call will not hear indication of the distant phone ringing yet the person on the other end answers and when queried says that it did ring once or twice. This indicates that connection was made before you were sent the first ring.

Cell phones rarely if ever get that because whereas a wired phone is always connected in the same route, a cell phone has to be routed through whatever tower it is connected to, and if its hitting more than one tower a decision must be made as to which one will complete the call.
 
PS By the way, when you turn your mobile off, before it actually turns off, it sends a different message to the network, saying "I'm off now, if anyone calls, don't try to reach me, go straight to voice mail." So that's different from the battery dieing.
Content from External Source

This depends on if it has a good connection. I've been experimenting with this here,and it seems a bit variable. The phone could get shut down before it send the offline message.
 
I often travel through areas with no cell coverage. My phone might send a " I'm going off" signal if I turn it off while going through one of those areas but nothing is listening. I often do this because I am going to a town along the CDN/USA border and my phone is more likely to connect to an American tower. When someone calls me and if I answer then it costs my much more than if its on a Canadian tower.
 
This depends on if it has a good connection. I've been experimenting with this here,and it seems a bit variable. The phone could get shut down before it send the offline message.
And possibly how its turned off. I know if I hold in the button on the top of my iPhone, it takes a good 20 seconds or so to turn off, and even when the batteries dies I see the phone show the white apple with the black background screen but its much quicker. Maybe if you take the battery right out of the phone it won't shut down the right way, but no one has access to the batteries, unless you know what your doing.

Just out of curiosity Mick, how do you experiment with this sort of thing. How do you know if your phone is sending the "message" or not.
 
Just out of curiosity Mick, how do you experiment with this sort of thing. How do you know if your phone is sending the "message" or not.


I experiment by turing the phone off or putting it in airplane mode, and then calling it from a landline. Then I see if I hear a ring, or if it goes to voicemail.

My initial results were that I heard a ring. But I repeated the experiment today and I got voicemail. Must be a bit random, and depend on network conditions.
 
I experiment by turing the phone off or putting it in airplane mode, and then calling it from a landline. Then I see if I hear a ring, or if it goes to voicemail.

My initial results were that I heard a ring. But I repeated the experiment today and I got voicemail. Must be a bit random, and depend on network conditions.
I think there are a lot of factors to take into account.
Are the two phones within the same exchange
Does the Central Office "know" the cell phone is on/off line
How busy is the local landline exchange
How busy is the tower(s) to which the phone is in contact

One aspect of the 9/11 disaster was that the cell towers in Manhattan were overloaded with calls. (did not help that the first plane took out the connection to the tower on WTC1). That is a worst case scenario but there are times when the system can be very busy even absent a major disaster.

The experiment would best be tried by putting your cell phone into a grounded metal box thus cutting off its connection w/o allowing any transmit of an 'offline' message.

You had some calls go directly to voicemail, and its not known how many of the calls to passengers also went to voicemail immediately. All we are getting is the more sensational reports of phones ringing.
 
The experiment would best be tried by putting your cell phone into a grounded metal box thus cutting off its connection w/o allowing any transmit of an 'offline' message.

Test it with the sim card out.

I just realized I had a radiation shielded chamber in my kitchen. The microwave oven.

I stuck my iPhone in there. Called it from my landline, and and I heard four "rings" via the calling phone (while the iPhone was all "no signal"), then went to voicemail.
 
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but did the ringing 'malaysian' phones Ever go to voicemail? I had the impression they just rang and rang.
 
One does have to subscribe to a voicemail service in order to get voicemail. Some of the passengers may be saving money by not doing that. Not sure How "burner" , pay as you go, phones operate wrt voicemail either.

At any rate they most likely will not ring forever as this ties up the system. Eventually the central office switch will cut you off, you'll get a fast busy signal, your cue to hang up.

Good thinking Mick, of course a microwave oven!( as long as force of habit does not compell the experimenter to turn it on)
 
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