I don't know about the two-wire computer room in Guangzhou. At present, the better dual-line computer room in China is the BGP computer room in Zhongyuan. It occupies an innate geographical advantage and has sufficient bandwidth. The speed and stability of the whole country are balanced. For example, the fourth-line computer room in Zhengzhou is connected to China Telecom Netcom Tietong. The price is also very cheap. Trusteeship only costs more than 4000 yuan a year. The overall cost performance is very high. Suitable for users who pursue high cost performance.
I am engaged in IDC industry. I hope the above views are helpful to you. If in doubt, please refer to me for details or Baidu HI.