Why can't my mobile phone send short messages to PHS?

First of all, judge whether it is your own fault or the other party's fault. In the future, you can send yourself a short message. If you can receive it successfully, it means that your network is normal, which means that it is not your fault, but the other party's fault. If you send it to yourself but you can't get it, it's your fault. Check whether the mobile phone is in arrears and whether the number of the SMS center is correct. If you are sure that there is nothing wrong with your mobile phone, call customer service quickly! Maybe it's because of your network.

By the way, you need to dial the area code of the other party before sending it to PHS users, whether local users or foreign users.