https://qooah.com/2013/11/06/pccw-%e5%a4%a7%e9%80%81%e5%87%ba-1000%e5%bc%b5%e5%85%ab%e9%81%94%e9%80%9a-sim-%e5%8c%8524%e5%80%8b%e6%9c%88%e7%84%a1%e9%99%90%e5%88%86%e9%90%98-5g-%e6%b5%81%e9%87%8f/