Can only receive SMS verification code (no phone calls, no text messages)

There is an information mode setting in the SMS Settings menu, and there is a number in this setting. This number is the SMS center number. If there is no SMS center number or the number is wrong, the SMS cannot be sent out. You can call the operator's customer service number for the specific SMS center number. Because the number in each region is different, you can also check the number of your colleagues' SMS center. As long as you are on the same network as your mobile phone, you can view the SMS settings of other Unicom mobile phones. If you are a mobile phone card, you can check the SMS settings of other mobile phones, or you can go to the local business hall and ask them to help you set them up. There is a line switching function in the call setting menu. Change Line 2 to 1 and you can make a call.