Just block the number/s then!!! Use a blocking app.

Caller: I don't know

This was one of several unsolicited calls I have received in the past two weeks from numbers that are supposedly from Thailand, and one of three I received today. Each time it is a different number, but they were supposedly from Thailand and appear ro have no connection to an existing company. Very likely to be scam calls. I didn't answer, they didn't leave a voicemail.