It is the first time I used Bytes... and the give us more details will not let me in? I want to design a system with 100% browser web access to my site/webpage. I want UK only mobile handsets to have access. I understand that the incoming dot.mobi message access will not show handset details. Can my website establish a handshake (or separate session) with the handset (web access source) to check if it is on a UK network. I do understand that a USSD...