Why can a mobile phone make phone calls and receive text messages but not answer the phone?

This situation can be divided into two parts. First, the problem with the mobile phone can be found out if it is a mobile phone. Second, it may be a network problem. If it is a network problem, you will still have such a problem if you change your mobile phone. In addition, you can also see if the call has been transferred. The way to cancel all transfers is to dial # # 002 #. You can try a mobile phone that you don't know what brand you are using. First, you can go to mobile phone customer service and ask for testing. Second, don't complain to operators. Don't blame users, let them think for themselves! ! !