ALL meanings of busy signal
bus·y sig·nal
B b - countable noun busy signal If you try to make a telephone call and get a busy signal, it means that you cannot make the call because the line is already being used by someone else. 3
- noun busy signal a repeated single note heard on a telephone when the number called is already in use 3
- noun busy signal buzz when dialled phone in use 1
- noun busy signal Telephony. a regular succession of buzzing tones transmitted to a caller to indicate that the circuit serving the number is blocked or in use, rapid repetition indicating that the network is blocked and normal repetition that the telephone being called is in use. 1
- noun busy signal (US, telephony) An audible signal to the calling party that indicates failure to complete the requested connection; an engaged tone. 0