https://qooah.com/2013/06/19/pccw-%e6%8e%a8%e5%87%ba-80gb-%e6%b5%81%e9%87%8f%e8%a8%88%e5%8a%83-%e7%b6%b2%e9%80%9f%e6%8f%90%e9%ab%98%e8%87%b3-150mbps/