What does the beep sound on the phone mean?

One is that the line is busy or the other party's microphone is not hung up, and the other is that the telephone line is short-circuited.

Generally, traditional fixed telephones will have a lot of beeps. If the other party is busy, you will hear a voice prompt. The content is about: "The subscriber (phone) you dialed (dialed) is on the phone, please redial later." When dialing a fixed line, if the other party is busy, you will hear a busy tone. However, after ringing for three times in a row, the phone will automatically hang up, and faults such as short circuit of the telephone line will also cause similar busy tones.

Introduction of other ringtones:

1, dial tone, there is a continuous tone of "om-"in the receiver after off-hook. This sound is a dial tone, indicating that the automatic exchange or the other party's call center system is ready to connect and allow users to dial.

2. Empty tone. When the user dials this number, he hears intermittent signal tones with unequal intervals (repeated 3 times, 0. 1s ringing, 0. 1s ringing, 0.4s ringing), which is an empty tone, indicating that the called number is an empty number or a restricted number.

3. Busy tone: When the calling user hears the short tone of "beep, beep, beep ……" during dialing or after dialing the called phone number, it is a busy tone, indicating that the line is full or the called phone is in use.