Is Jiangxi Nanchang Tietong good?

You can use telecom or Unicom's broadband, but really don't use Tietong. First, because it started late, and second, because Tietong was only responsible for communication within the railway system, its initial positioning was limited. Therefore, its infrastructure and resources are less than those of the other two countries. So its broadband quality is not as good as the other two, which is objectively decided.