Longman Dictionary of Contemporary English
Wiktionary
n. (context UK English) (alternative form of dial tone English)
Usage examples of "dialling tone".
The receiver was dropped back, leaving him with just the dialling tone, a sound like angry insects swarming that could turn into imaginary noises in the head if he didn't take a grip on himself.
I heard the dialling tone and could feel my shoulders sag with relief as the receiver at the other end, after relay through an hotel desk, was picked up almost immediately.
Morses hand flashed across the table and snatched the receiver, but he heard only the dull, quiet purr of the dialling tone.
She grabbed the phone beside her bed, and was grateful to hear the dialling tone.
Nobody speaks as he waits, the receiver pressed to his ear so that the absence of a dialling tone will not be heard.
The dialling tone told him that the phone was probably in working order, and keeping the instrument to his ear he turned round and looked up and down the road.