NO MORE 2G? DON'T WORRY! WE'VE GOT YOU COVERED! CONTROL FREQ DO 3G VERSIONS OF ALL GSM DIALLER & GSM INTERCOMS!  Buy 3G GSM diallers, intercom, door entry and remote / access control products. The GSM auto-dialler and GSM intercom entry systems on this page in particular are 3G versions only. In parts if the World such as the USA and Australia where 2G is / has switched off, 3G is the only option. These 3G products will operate in any country on any 3G network. If your country only has 3G network availability then choose a 3G version. The UK is 2G although 3G will also work in the UK. Any questions please call us on +44(0)20 3478 0786 or email