1 The card you are using has no domestic roaming function.
Your mobile company forgot to open domestic roaming service for you when you bought the card.
I suggest you call the home of your mobile phone, that is, the mobile customer phone number 10086 in Wuhan, and ask if your mobile phone has domestic roaming service.
If there is, but it is not prescribed for you, you can ask them to prescribe it for you right away.
If your mobile phone doesn't have domestic roaming service, but you are still worried that others can't receive your call, you can ask them to transfer your call to a phone that is convenient to answer at home, that is, the transfer fee can be higher, that is, long distance fee+transfer fee.
If you don't understand anything, you can send me Baidu information.