Foremost, your website only recognizes phone numbers from countries which have 10 digits including the country code. So for instance I cannot list US, Canada, Indian, etc numbers at all!! Please fix this flaw.
Got call from +918132006555, but it was a middle of night and took until morning when I saw the missed call. Shouldn't this be an Indian number? +91 is a country code for India.
They did not leave a message, so nothing important enough to call back.