PHS can't receive short messages.

When you send a message to PHS with your mobile phone, you should add 106+ area code+PHS number, so that you can send it. If you use PHS to send a message to your mobile phone, just send your mobile phone number directly.

In addition, it depends on whether the SMS status of the two mobile phones is normal. Sometimes when the PHS signal is not very stable, it will also affect PHS to send and receive short messages. In this case, you can try a few more times. If you don't succeed, there is no charge.