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مشاهدة النسخة كاملة : Switzerland’s annual siren test: what you need to know


BECKHAM
02-02-2019, 01:41 PM
On Wednesday February 6th, Switzerland will carry out annual testing of its nationwide siren system. For the first time, this year's test will also be carried out on smartphones.

for more... (https://www.thelocal.ch/20190201/switzerlands-annual-siren-test-what-you-need-to-know)