Place it in the middle of a busy office scene after keyboard typing, then follow it with a shocked reaction when the character picks up the phone and realises who is calling.
关于此声音
This eight-second clip plays the repeating ring of a landline office telephone, with a sharp, insistent tone that cuts through a quiet room. It feels urgent and slightly stressful, like an important call that cannot wait. It is the ring used for a director's desk phone.