A vast majority of Nigerians abroad call home using calling cards. The problem with calling cards is that a lot of them are fraudulent. There are so many hidden charges that you do not get anywhere near the announced minutes. A better alternative is to use on-line sites. An excellent site is www.itellway.com. This service has excellent call quality and not extra charges whatsoever. Your credit never expires and you can call without entering a pin. Also they have access numbers in over 50 countries. They provide home phones at cheap rates. If you call home from abroad, give it a try.