Now we all know about or have used Skype at least once in our lifetime. It is a program great for long distance calls or video calls, either from PC to PC or from PC to Phone. Works either way.
The beautiful thing about this program is the fact that you can be logged on to the same account from more places at once. For example: lets say you have the phone version and the PC version running simultaneously. If you get a call on your PC you get it on your phone as well. You can talk with one person on the phone and with another person on the PC (if you don’t desire to create a conference with both persons in the same group).
This small app can be downloaded either from the Android Market or you can get it from their website. The app per-say is free but you can choose to pay if you desire to make calls to phone numbers and not skype accounts.