Why does a talkative cat's pager light flash twice?

This is a unique function of a talkative cat, mainly to prevent two guests from colliding when talking on the phone at the same time, and the information of one guest will not be received. The talkative cat designed the function of sending messages for the second time to avoid this situation, because the simultaneous calls of two pagers are separated at the second sending time, so you can try if you don't believe me.