Skype is an internet telephony application that enabled use to "make calls" over the internet. The sound quality is really good, I am usually online with it, and then we can talk. Especially you cheap skates who won't call because it's an international call.
So download it at www.skype.com.
Once you get set up (it's free), my user name is Rodney Cornelius. If I know ya, I'll add ya! :-)