Joke Collection Website - Blessing messages - Calling each other with several mobile phone numbers is turned off, and texting can still be sent. Why?

Calling each other with several mobile phone numbers is turned off, and texting can still be sent. Why?

If the other party's mobile phone is turned off, no matter which mobile phone you call, it is turned off, but the message you send is different, because he can only receive it when it is turned on. For example, if the other party shuts down for one day, it may be turned on the next day, and the news will come only after it is turned on.