How to use telecom card to open international and Hong Kong, Macao and Taiwan roaming?

The ways for Tianyi mobile phone to open international roaming and roaming in Hong Kong, Macao and Taiwan are as follows: 1. 3G customers can log on to the online business hall of Jiangsu Telecom, the handheld business hall of Jiangsu Telecom, the short message business hall of Jiangsu Telecom, call the customer service hotline 10000 (only for customers who don't need to change their cards or charge), and entrust the account manager or maintenance manager to open it. 1, 3G customer online business hall processing method: 1: self-service-business processing-subject classification-section "Hao"-click on international roaming (online business hall will automatically judge whether the customer meets the processing conditions and the type of mobile phone card used). Method 2: business handling-mobile phone customers-international roaming method 3: self-service-business handling-hot search international roaming. 2.3G customer handheld business hall handling method: Click Business Hall-Business Hall-International Roaming in the menu bar. Remarks: You can inquire through the pocket business hall of Jiangsu Telecom, and click "Package Remaining"-"My Business" to inquire about the business handled. 3.3G customer SMS opening mode: (1) Send the free instruction 339 to 1000 1, and you can complete the subscription of international roaming service according to the SMS content: Send 339 1: Open international roaming voice, SMS and data services. Send 3392: Open international roaming voice and short message service. (2) The customer can edit the short message "GJMY# Pinyin initials of the country to be roamed" or "605# Pinyin initials of the country to be roamed" to 1000 1 to inquire about the tariff standard of the roaming country. Second, the opening mode of 4G customers: (1) Prepaid customers: you can apply through the local telecom business hall. (2) Post-paid customers: You can call the customer service hotline 10000 and the telecom business offices in various places to apply. Specifically, you can consult the QQ customer service broadband service of Telecom, and self-help troubleshooting is simple and easy to operate. In addition, you can also handle work order inquiry, ITV troubleshooting, broadband application and password service, which is convenient and fast. For more functions, please pay attention to China Telecom's Guizhou customer service. Customer service 30 will answer your questions.