Skype mainly offers free call from pc to pc like yahoo messenger. But when you download skype for first time, you get 10 min free call to any phone. This service is limited to the countries listed below. I downloaded today and tried Skype to Skype call. Connection and clarity was good. I haven't used my free 10 minutes yet. My home country is not listed on the free calling list. So, I will try to some other countries.
Download Skype from here http://www.skype.com/welcomeback/
Your first call is free
Call someone’s phone – you may start liking it.
If you like it, you may call more with Skype Credit.
Skype-to-Skype calls are always free.
But hurry, you only have 30 days to make that free call after downloading.
How to make your free call?
1. Check sound
Plug in your headset or use the built-in speakers and microphone on your computer. For the best sound quality, use a headset or phone from our store.
2. Dial the number
Click the Call Phones tab, select the country and enter the phone number you would like to call.
3. Start the call
Press the big, green call button and enjoy your free call.
Please note that duration of your first free call depends on calling rates. If you call a mobile your call duration will be limited.
Where can you make a free call to?
Argentina (Buenos Aires), Australia, Austria, Belgium, Canada, Canada (mobiles), Chile, China (Beijing, Guanzhou, Shanghai, Shenzhen), China (mobiles), Czech Republic, Czech Republic (Prague), Denmark, Estonia, France, Germany, Greece, Guam, Hong Kong, Hong Kong (mobiles), Hungary, Hungary (Budapest), Ireland, Israel, Israel (Jerusalem), Italy, Luxembourg, Malaysia, Malaysia (Kuala Lumpur), Mexico (Mexico City, Monterrey), Netherlands, New Zealand, Norway, Poland (Poland, Gdansk, Warsaw), Portugal, Puerto Rico, Russia (Moscow, St. Petersburg), Singapore, Singapore (mobiles), South Korea, Spain, Sweden, Switzerland, Taiwan (Taipei), United Kingdom, United States (including Alaska and Hawaii) and United States (mobiles).