Before setting off, check that your mobile is activated for telephoning abroad. Your provider will give you information on this. You may need an adapter to recharge your mobile in Switzerland. Travellers from USA and Japan: Phoning in Switzerland requires a triband device that works on both American and European networks.

AUTOMATIC OR MANUAL CHOICE OF NETWORK

When you enter Switzerland, your mobile telephone will start roaming for a new provider of its own accord as a rule. The most common available networks are Swisscom, Sunrise or Orange CH. To select a mobile network manually, the manual network selection function must first be activated on the mobile phone. Manual network selection is strongly recommended because of the wide variations in transmission quality and the plethora of services on the individual networks.

IN SWITZERLAND

When phoning from Switzerland the number is preceded by the international dialling code. For example, Germany +49, or France +33. The "0" of the local area code is omitted, for example +49221123456. As a rule, the "+" sign appears if you keep the"0" pressed for a bit longer.
When calling within Switzerland it is not necessary to enter the country code. However, you do need to enter the local area code; if calling a number in Berne, for example, you would dial "031123456".