How to reply to missed calls?

You can say, "Hello, did someone use this phone to call my mobile phone just now?"? This is the number that just showed the missed call. "

(However, I have to remind the landlord that it is likely to be harassing calls. There are often some numbers that flash on the phone, then hang up, and then wait for someone to reply before cheating, and so on ~ ~ Hehe, I hope you are wrong. )