Calling a cellular phone in another country is done the same way as calling most other phone numbers in that country.
In most situations, the calling sequence (exit code – country code – local phone number) is very much the same for calling a cellular phone as it is for calling any other phone in that country.
There are some situations where the call is slightly different – such as Mexico, for example, has a slightly different call sequence when calling to a cellular phone.
Regional (area) codes vs. “phone type” codes
In some countries (for example Canada and the United States, for example), mobile phone numbers are integrated with the regular system – there are area (geographic) codes, and mobile phone numbers are regularly interspersed among them.
In other countries (many European countries, for example) there are geographic (area) codes, however mobile phone numbers have their own dedicated geographic code.
In most situations, the rate to call a cellular phone is the same as to call any other number in that country.
When calling some countries, it can be more expensive to call a mobile phone number than it is to call a landline phone number. Countries with this situation often have two different rates listed for the international rate.
It should be noted that when calling a cellular phone, the receiving phone owner may incur cost for time on the phone.