If i will submit here the Microsoft or other brand original number, then you will call him also without verify the number, so please check the number first, then call anyone. There are various difference between popup scam and seo site promoting.
In popup scam , they force people to call and when you will type those numbers on google, then you will not get any search results on that number, where as
when any number you will type on google, if you will see the results of blog regarding that number, then this is not scam and then not force anyone to call. They promote his number on his websites or blogs, so understand these differences carefully and, then call any one.