Hong kong hotel calls the mainland.

Answer technical questions. First, if you check according to the caller ID number, the number you found is Sanzheng Banshan Hotel in Tangxia, Dongguan, and 100% comes from this hotel. Second, many hotels in Hong Kong now cooperate with mainland hotels. Through network technology, Hong Kong can use mainland lines to make calls to the mainland without incurring high long-distance charges. Hotels in Hong Kong usually cooperate with hotels in Guangzhou or Shenzhen, and it is hard to imagine cooperating with Tangxia Sanzheng Banshan Hotel in Dongguan. Even if we cooperate with Mid-Levels Hotel, we will not directly use the hotel's telephone for caller ID.