By default, the international calling facility is disabled. If you do want to use this facility you can enable it from your Network settings page. Once enabled, international calls will be charged at a higher rate than calls to UK landlines and mobiles. Please visit our Tariff and charges page for current prices. Enabling international calling allows you to make calls from the UK to other countries, it does not enable you to use your mobile outside the UK. To do this you will need to enable roaming.