Place it at the start of a scene to signal an incoming call, then follow the answer with a door knocking sound when the caller arrives in person, and save a dramatic dun dun dun for the moment the caller reveals the news.
关于此声音
This is a ten-second recording of a traditional telephone ringing in its familiar double-ring pattern, bright and insistent with a slightly vintage tone. It creates instant anticipation, as if someone important is trying to reach you right now, and pulls attention toward the screen before anyone answers. The sound feels urgent and playful at once, perfect for a sudden interruption.