The setup can support 18,000 simultaneous wi-fi connections, while a distributed antenna system (DAS) boosts mobile phone coverage in the stadium. "So, you know your phone will work," says Phil Davies, IT Director at Everton Football Club.
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'They are essential': How smoke detectors are evolving。关于这个话题，一键获取谷歌浏览器下载提供了深入分析
Фото: Vincent Thian / AP，详情可参考快连下载安装