回铃音 Traditional form: 回鈴音 Pinyin (reading): huílíngyīn Definitions: ringback tone Characters: 回 - to return, to turn around; a time 铃 - small bell 音 - sound, tone, pitch, pronunciation Traditional characters: 回 - to return, to turn around; a time 鈴 - small bell 音 - sound, tone, pitch, pronunciation