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The spate of bombings and attempted bombings in the London Underground in July 2005 have left many commuters and those who care about them feeling anxious and at risk. One way we as humans struggle to overcome the discomfiting sensations of helplessness and disquiet is to search for something, anything, that restores so much as the smallest part of our usual sense of control over events. We are used to believing we are in charge of our own lives, so we cast about desperately for that which will return things to what we see as their proper state of our directing, or at least influencing, our outcomes. In 2005, our newsroom came across the below claim: The seemingly helpful heads-up about connecting to emergency services via using an alternate phone number when deep in the subway system is part of that search, in that it gives the appearance of being information those traveling in risky circumstances could put to use. However, it's all a chimera: while the need to feel safe once again (or at least capable of being quickly rescued) is real, the intelligence about an alternate phone number that will always work is not. The global mobile emergency number, 112, is special in the sense that (unlike other local emergency numbers, such as 999) it will use any tower your mobile phone can contact to complete the call, regardless of whether or not your phone is authorized to relay signals through that tower. However, the 112 number has no special properties that enable callers to use it in areas where all cellular signals are blocked (or otherwise unavailable). Mobile phones do not work in many parts of the London Underground, and satellite signals cannot reach there either. While dialing 112 or 999 will put you through to emergency services in Britain when your mobile has signal, such calls will not go through when your unit does not. Many sections of the London Underground are far too deep for satellite signal to penetrate; in those areas, calls to neither 112 nor 999 will connect. More succinctly, when there's not enough signal with which to make a call to 999, there will not be enough to make one to 112. London Transport and mobile firms are warning people about the e-mail quoted above, saying it contains inaccurate safety information. This email is incorrect. The 112 number does link people through to 999, but it only works if you have a signal on your mobile phone. If you have no signal bars on your phone, it will not work, a spokesperson from London Transport said. It will not divert to a satellite signal. Even with a satellite mobile phone (which very few people have), you would need to have a clear line-of-sight to the satellite. You would have to be outside, not in a building or a tube tunnel. The helpful advisory about dialing 112 is not the first bit of e-mailed misinformation to arise from the London bombings. A useful suggestion that the cell-enabled store an in case of emergency (I.C.E.) contact number in their units attracted a hoax that warned against doing so lest such entry leave users' phones open to theft of their prepaid minutes. We cover both the emergency contact brainchild and the hoax that followed it on our page about the push to get cell users to store I.C.E. numbers in their phones. Sources
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