Kuwait has high international call rates. Although calling overseas is also very cheap if you use the many booths that advertise 'Net2Phone' service, which is illegal. Basically it is calling over the Internet. For home usage, Phoneserve cards are available (mostly in Hawally) that can be used for cheap calls worldwide. Users with credit cards use Skype and Yahoo Voice for communication as well, but skype website was banned now.
Some traditional corner-shops commonly referred to as "Bakalat" sell an international calling card called Big Boss which offers good rates to Europe but only when calling landlines. For the rest of continents the rates are decent even when calling mobile phones.