国立アメリカ歴史博物館のインスタグラム(amhistorymuseum) - 11月13日 23時17分

This is a Nokia cell phone with "Mayday" emergency transceiver from around 1996. Built by NAVSYS of Colorado, it was part of a federal experimental emergency response system from 1995.
Tested in Colorado, the system relied on GPS data and map databases to provide the location of emergency cellular calls. Based on this testing, the Federal Communications Commission established regulations which required the caller's location to be provided to first responders for all mobile E-911 calls.
For the next few days, we're bringing you objects related to #CommunicationsHistory. Let us know what you think! ☎️?? #Call911 #WirelessHistory #MediaHistory

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