How does China Telecom open one card and two numbers service?

China Telecom's domestic one-card multi-number service will be open to the prepaid and post-paid users of Tianyi nationwide. Users can edit the short message "TKYKSH# area code" as 106598738, and the service can be opened without going to the business hall. However, Tibet, Xinjiang, Hong Kong, Macao and Taiwan regions do not support this business for the time being.

One-card dual-number service refers to the opening of two digital mobile phone numbers on a mobile phone card, one of which is called the main number and the other is called the virtual number. Users can operate and switch through the mobile phone menu, and can choose any number to talk, which meets the communication needs of users using different numbers at different times and places and provides users with personalized communication methods.