actually, storing traffic is not a high technology. surfing the internet is for traffic identification and billing, which can be done in theory. Just like our mobile phone billing and bank billing system, at present, China uses internship traffic billing, which is not like the banking system for regular real-time billing. If you are a family broadband traffic, use the downloader to store the broadband traffic to your mobile phone, and you can release the mobile phone storage traffic when roaming in different places. The remote network system can automatically identify you as a remote broadband, and charge a small amount of remote traffic fee when connecting, and most of them still use your home broadband traffic. This involves two issues, one is the national traffic interconnection charging, and the other is the unified traffic charging system. At present, no operator will do this, because this will move their cake.