Hi, if it really was an emergency I would have thought that it would not be left at the stage of an unanswered mobile phone call - rather, that the Police or similar would have been involved in some way to try and contact you.
WPA2 hack: How secure is your Wi-Fi?
Microsoft Surface Book 2 hands-on review – bigger and 5x faster
Best kids apps for iPhone & iPad
Que faire si son iPhone ou iPad est tombé dans de l'eau ?