The dialed user is busy. What's the matter?

There are five situations in which the dialed user is busy:

1. The other party's mobile phone is turned off and the incoming call cannot be received.

The other party's mobile phone is turned off. At this time, no matter how to make a call, the other party can't receive the call. It can only remind you that the subscriber you dialed is busy. Please redial later. In this case, you can only communicate after waiting for the other party to turn on the phone.

2. when you make a call, the other party is in a call state.

when you call the other party, the other party is in a call state, so you can't get through at this time. However, when this happens, the user who will receive the call immediately is busy with this voice, and there will be no dripping sound.

3. The other party has set up a blacklist, or started the flight mode.

If the other party blacklists himself, it will be useless to make any number of calls at this time, because the blacklist can directly intercept calls. At the same time, if the other party happens to start the flight mode, it is also impossible to receive the call, and the flight mode is in a state of no signal.

4. There is something wrong with your SIM card, so you can change your mobile phone for testing.

when the SIM card is wet or out of order, you can't receive calls effectively. At this time, you can choose to change your mobile phone and test it. If it is a problem with your mobile phone card, you should go to the business hall to change it in time.

5. hang up directly when the other party is inconvenient to answer.

when the other party is inconvenient to answer the user's phone, you will receive the same prompt if you hang up directly or don't answer it.