thank you notes

Wedding thank you note.sammachinMar 18, 05:00 AMActually the way they are most likely doing this and the way most carriers do it is using some deep packet inspection kit or maybe even a transparent proxy. They can look for browsing traffic on port 80 then simply pick out any users where the user agent string is that of a computer OS so Windows|Mac|Linux. 2 options to get around it are: either