Hehe, hello! I work in mobile media. Although, time is not long. However, during this period of study, I still know a little about China's three views online. First, China Unicom (CDMA2000) is ahead of 3G. If you want good video effect or outstanding network speed, I suggest you choose CDMA2000. If you want to choose roaming, domestic roaming quality is better, then I hope you choose China Mobile (TD-CDMA). Now I mainly analyze your problem, because I am not from Zhaoqing, and I don't know much about the network layout there. In one place, there are loopholes in the network layout of China Mobile Unicom and CDMA. Therefore, I suggest you ask local telecom users about their local usage. Generally speaking, the telecommunication signal is very good. Because telecommunications has a good network layout in China, I am also using telecommunications in Beijing, including my signal in the elevator. So: I hope you can ask about the specific situation and use it as appropriate! Finally, I hope you can choose a brand that suits you.