(also engaged signal)
Definición de engaged tone en inglés:
A sound indicating that a telephone line is engaged.
- Well, since last Thursday we have been trying to call the phone number repeatedly, but all we've been getting is a permanently engaged tone, or a ringing tone followed by a dead tone.
- Whatever time of day I try and call their helpline I get the engaged tone.
- He hung up, and the engaged signal sounded in my ear.