1. Download the Dayun Beidou Station Calling APP in the App Store or official website.
2. Register the Dayun Beidou calling account with the mobile phone number and verify the identity through the mobile phone verification code.
3. Select the service window that needs to handle business in APP or official website, get the queue number and make an appointment.
4. Go to the service window at the appointed time, wait in line according to the calling opportunity, and go to handle the business after calling.
It should be noted that the usage of Dayun Beidou calling system may be different due to factors such as region and service type. Please follow the system prompts or consult the local official customer service of Dayun.