Thread: Tube passengers tracked by phone WiFi
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Old September 9th 17, 08:21 PM posted to uk.transport.london
Roland Perry Roland Perry is offline
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Default Tube passengers tracked by phone WiFi
In message , at 13:49:16
on Sat, 9 Sep 2017, remarked:

Apart from anything else, this is about wifi coverage which is for data
which is little used for voice calls.

Never used Whats App voice calls, grandad?
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Roland Perry
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