Got a missed call from the strange number: +923054400465 Initially I though that is a normal missed call from anybody. I just ring back to that number but I was able to listen unknown language. Then I checked the number again from call log, then realized the number is not a normal number, then I googled the number and found it is a strange number. So calling back did I do anything worng? What I need to do, please advice.

Regards
bsujay@outlook