Why do I sometimes call someone to show that I am busy?

The number you dialed is busy and will be notified by SMS. The reasons for the problem are as follows:

1, the other party is on the phone. When the other party is on the phone, the system will automatically prompt you that the number you dialed is busy.

2. The other party's mobile phone is turned off (when there is no signal). If the other party's mobile phone is turned off, you will also prompt the other party to be busy when you call.

3. The other party's signal is not in service area. When the other party's number is not in the service area due to the signal, it will prompt that the line is busy when calling.

4. The other party has set up interference interception, such as blacklisting you or setting your mobile phone to flight mode. This will happen when you call the other party.

The role of call reminder:

1. Call reminder means that when the phone is turned off or out of service, the call reminder platform will save the call information for you within 24 hours. After the mobile phone returns to normal, all incoming calls will be sent to your mobile phone in the form of short messages, so that you will no longer worry about losing important calls.

2. After the call reminder is turned on, when the mobile phone is turned off or out of service, the prompt tone heard by a friend is Hello. The subscriber you dialed has turned on the call reminder function, and we will inform the other party of your call information by SMS. Thank you for calling. Please hang up the phone. Goodbye. You don't have to pay for this call.