标签:emergency telephone
Posted in 业界观察
Security in History: June 30, 1937 世界最古老的应急热线电话
K.T. Sima 2022年6月30日
June 30, 1937 London, UK The world’s oldest emergency telephone number 999 was introduced in L…
Webinar: How to Gain a “Crisis Advantage” with Real-Time Information
2019-12-04
In case you are not aware, this is an AS...