Why is there a short message when calling?

1,: This situation shows that the other party has opened the call reminder service. Incoming call reminder means that when the mobile phone is turned off or out of service area, all incoming call information is saved for you within 24 hours through the incoming call reminder platform.

2. Call someone to remind them that the incoming call reminder has been notified by SMS, indicating that the other party has started the incoming call reminder service. When the user dials the number, it is in an undisturbed state or turned off. At this point, the incoming call information will be notified to the owner by SMS.

This situation shows that this number is in normal use. It's not canceled, and it's not empty. The customer has opened the call reminder function, which is a payment function opened when the mobile phone can't communicate normally due to reasons such as power failure or shutdown, poor signal or no signal.

4. In this case, it may be that there is no signal on the other party's mobile phone, and then you will be prompted by SMS when dialing. Including his mobile phone, if you don't want to answer someone else's phone, you can't call in. At this time, you will text him to remind him.