engaged tone

[英国英语]

• 1. 

  N-COUNT If you try to make a telephone call and get an engaged tone, it means that you cannot make the call because the line is already being used by someone else. (电话的)占线音; 忙音

  例：

  I tried the number again, got an engaged tone.

  我又拨了一次那个号码，电话还是占线。