China Telecom is the first choice. China Telecom's servers and network setup are relatively complete, and they are constantly improving and upgrading servers and lines every year. The network speed is relatively stable and good, and network congestion generally does not occur during peak periods; however, other reasons for network problems cannot be ruled out. Failure;

Secondly, China Overseas Telecom. China Shipping Telecom is a company under the COSCO Shipping Group. Like China Telecom, it is a large state-owned enterprise and a Fortune 500 company with strong backing. Compared with China Telecom, the network quality is not that good, but it is guaranteed;

Pearl River Broadband, China Railway Telecom, Great Wall, etc. are much lower in price than China Telecom, but the corresponding quality is not as good as China Telecom, and the service is also poor. Not as good as China Overseas Telecom.