00:01What this means is that all devices in the network were tuned to a different set of times,
00:09which is not what you need over a network.
00:11You want all devices to be tuned to one source that determines the time of the network.
00:17That loss of synchronisation has led to several servers going down and they are now being
00:24gradually brought back to life.
00:25I guess what we are seeing is the level of penetration mobile phone communication now
00:31has on our lives, on our societies.
00:34Previously we would think, okay, if there is a telecommunication outage, our mobile phones
00:38will be affected.
00:40But now with increasing number of products and services connected to the mobile network,
00:45every time a network outage takes place, you would find one or two products and services
00:50here and there getting affected.
00:52So it is unprecedented but can be explained by the fact that these products and services
00:58are increasingly reliant on mobile phone technology.
01:02Trains in this case use mobile phone technology to convey traffic related information to the
01:10central control stations.
01:11So this is information like their location, their speed, so that the entire train network
01:17can be effectively managed.
01:19Now if you think about it, trains were running even before mobile phones were invented.
01:25So technically trains can still run without mobile phone technology, but the present system
01:32that ensures security of trains on the tracks is highly reliant on mobile phone communication.
01:40So any glitches in the mobile network will have an impact on the security that can be provided
01:45to the trains running on the tracks.
01:47Thanks.
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