chn-ct is China Telecom’s 4G network. The full name of CHN-CT is China Telecom (FDD-LTE), which translates to China Telecom (the fourth generation mobile communication network). It belongs to China Telecom's mobile communication network and can only be used by telecom users. CHN-CT technology includes two standards: TD-LTE and FDD-LTE, but LTE is only 3.9G, so in a strict sense it has not yet reached 4G standards; only the upgraded version of LTE Advanced meets the International Telecommunications Union's requirements for 4G .
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
CHN-CT (4G) full name is China Telecom (FDD-LTE), which translates to China Telecom (the fourth generation mobile communication network). It belongs to China Telecom’s mobile communication network and can only be used by telecom users.
This technology includes two standards: TD-LTE and FDD-LTE (strictly speaking, LTE is only 3.9G. Although it is promoted as a 4G wireless standard, it is not actually recognized by the International Telecommunications Union by 3GPP. The next generation wireless communication standard described is IMT-Advanced, so in a strict sense it has not yet reached the 4G standard. Only the upgraded version of LTE Advanced meets the International Telecommunications Union's requirements for 4G).
How to solve the problem of CHN-CT?
1. After this problem occurs, first determine whether your machine supports the telecommunications network. For example, when the Hong Kong version of iPhone releases the telecommunications card, it will display no service or CHN-CT and cannot be used normally. Because the CDMA network is not covered in Hong Kong, although the hardware supports it, the software is blocked by Apple. If you put a telecommunications card in the mainland and put it in the Hong Kong version of the iPhone, CHN-CT may appear.
2. If your mobile phone is a model that supports China Telecom’s 2G/3G/4G network. Then this situation may be a problem with your SIM card or system. You can go to the business office to change the SIM card, or try to re-flash the phone to solve the problem.
3. It may also be a local base station problem. You can go into Settings - Cellular Network - Cellular Data - turn it off, then turn it on again, and keep the 4G switch on to try to solve the problem.
If the problem cannot be solved, you can go to the local telecommunications business office or Apple after-sales service for further technical support.
Extended information
China Telecom Group Co., Ltd. is a very large state-owned communications enterprise in China and a global partner of the Shanghai World Expo. Selected into the "Fortune 500 Companies", it mainly engages in comprehensive information services such as fixed telephones, mobile communications, satellite communications, Internet access and applications.
As of the first half of 2011, it has 194 million fixed-line users, 62.36 million mobile phone users (CDMA), and 61.74 million broadband users; the group company has total assets of 632.2 billion yuan and 670,000 employees.
In May 2016, the State Council selected the first batch of “Enterprise Demonstration Bases for Mass Entrepreneurship and Entrepreneurship”. In August, China Telecom Group Corporation ranked 29th among the "Top 500 Chinese Enterprises 2016".
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