Apple 5s can only send wechat, but can't answer the phone. What's going on here? Please advise.

This situation may be the opening of the "do not disturb mode". In Do Not Disturb mode, "Allow the following incoming calls" is selected as "None" or "Nobody" (different operating system versions prompt different vocabulary). In Ningbo, Zhejiang, if the Do Not Disturb mode is effective, it will prompt "The number you dialed is busy ...".

Accordingly, you can turn off the Do Not Disturb mode or change the option of "Allow the following calls" in the Do Not Disturb mode, and generally select "All contacts". If "All Contacts" is selected, if the Do Not Disturb mode is enabled, only people saved in the phone address book can make calls, and the rest can't. Of course, you can also set to allow "repeat calls" to make calls.

The method of setting the "Do Not Disturb" mode is as follows:

First, enter the settings;

Second, click the don't disturb mode;

Third, choose the option in Do Not Disturb mode, and choose different options as needed.