Why is there a beep when calling the other party?

If the other party uses a smart phone, the incoming call firewall may be turned on, and settings such as "The subscriber you dialed is power off" or "No incoming call" will appear. If the called party is blacklisted, the other party's mobile phone will not display the incoming call, but will beep.

There are several reasons: the other party's mobile phone has no signal. If the mobile phone you dialed can't receive the signal temporarily, this prompt tone will appear when calling the other party's mobile phone system at this time. The other party has set up call forwarding.

There may be three reasons for automatically hanging up when calling the other party: the other party is on the phone; Bad signal, bad signal from the other party or bad signal from you; The other party blacklisted your phone number.

There are several reasons for the beep when talking on a mobile phone: the signal of the other party's mobile phone is not good. The other party hung up after the bell rang. Network delay. The number was blocked by the other party. The other party's mobile phone is dead. There is something wrong with the other party's mobile phone.

There are three main voices on the phone. Dial tone, long beep-,indicates that the link is normal and you can dial. Ring back tone, that is, the voice you said waiting for connection, means you are connected and waiting for the other party to beep-beep-beep-beep. The duration depends on different national standards.

The reason why mobile phone calls are dripping: when the phone bill is running out, a prompt will be given. Some mobile phones will remind you every minute that this can be turned off.