It should have nothing to do with the location.

If you didn't buy the number in the telecom mobile business hall,

Many people get harassing calls,

Or, for example, someone does business or leaves a number at work,

I often get some junk information,

Basically, one every two days, which is very annoying.

Then I downloaded a Tencent mobile phone housekeeper and set up strange phone message filtering.

Many unknown numbers and advertisements can be blocked in one week.

It is quite practical. The landlord can try.