Why is the operation method of SMS in two cities?

Both the main number and the virtual number of Shuangchengtong can send and receive short messages normally. When the user sends a short message to the mobile phone to which the virtual number belongs when roaming locally, domestically and internationally, the sending number is displayed as the virtual number, and all other short messages are displayed as the main number. All short messages sent to the virtual number of Shuangcheng are automatically transferred to the main number for reception. If the main number needs to be set with SMS call forwarding function, it is not allowed to call the virtual number. Customer service 48 answers for you. Broadband service can self-help troubleshooting, which is simple and easy to operate. In addition, it 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.