https://blog.wongcw.com/2020/02/17/verizon-%e6%93%b4%e5%b1%95%e5%9c%8b%e9%9a%9b5g-%e7%b3%bb%e7%b5%b1%ef%bc%8c%e5%bb%ba%e7%ab%8b%e5%80%ab%e6%95%a65g-%e5%af%a6%e9%a9%97%e5%ae%a4%e5%92%8c%e5%b7%a5%e4%bd%9c%e5%ae%a4/