( I ) Telecommunications and mobile communications
Generally, you may use the telephone in the guest room to make International Direct Dialing (IDD) calls. In addition to the telecommunications fees, the hotels will charge an additional service fee of about 10% - 15% . You may directly make international and domestic long-distance calls using an IP phone card or a prepaid card bought in stores on a public telephone. To apply for telephone and broadband Internet services, please call telecom operators at 10000 (China Telecom) or 10050 (China Railway Signal & Communication), or visit the operators' business outlets. Internet services are also available in hotels' guest rooms and business centers, and Internet cafes. Guangzhou has two mobile communication networks, GSM and CDMA, which provide wireless Internet services. For details, please visit the operators' business outlets or call 10086 (China Mobile) or 10010 (China Unicom)
(II) Banking services
Outlets of major banks in Guangzhou provide foreign currency exchange and reexchange services, and three-star hotels or above provide foreign currency exchange services. Star hotels, some restaurants, large department stores and supermarkets accept overseas credit cards. Most outlets of the Bank of China provide traveler's check cashing or collection services.
Source: Guide For Foreigners In Guangzhou(2021)