International Calls made easy

In principle its very easy like you call from your land line or mobile at home.
The only difference is, you have to dial some prefix numbers and leave out the leading zero (if any) in the area code or the mobile phone number. 

It looks like: 
Access code (IDD) + country calling code + area code (if any) + subscriber's phone number 

example US/Canada: 011 + country code + area code + subscriber's phone number
example Europe: 00 + country code + area code + subscriber's phone number


Lets say you want to call from country A (the country where you are) to country B (the other country where you want to call to).

I. the first number you have to dial will be the International Dialing Prefix (IDD) of country A to indicate it is an international call (out of the country), in the majority of cases this will be "00", in Canada and the US "011", however please check the IDD list above.

II. then you dial the Dialing Country Code alias Country Calling Code for country B (see list above)

III a (for land lines)
then you dial the phone number of the called party, (the person or company you want to call), this number is made up of: the area code (NOW without the leading zero!) for a city or region within the foreign country and the unique number (subscribers number) of the called party, the number of your uncle Tom.
If you don't know the area code try a search engine like Google by searching for "area code city/town name" 

III b (for cell phones)
then you dial the phone number of the mobile phone you want to call (without the leading zero)