Skype

This freeware I have used many years and was always happy. For me Skype was the first choice when I need to call my family members reside overseas as well as for in-office discussions. I made Skype as my choice because of it's call quality. Also it is very easy to set up and make camera adjustments, etc.

It is hard to find very old chat history if I used a mobile Skype application and Windows Skype application randomly to chat with someone in your contact. Many times I lost my chat history. Moreover, it is too costly if I need to call international numbers directly using Skype.

If you want to go for quality call I can suggest that Skype is the one you can opt. If you want more user Interface and low cost call to an international number you can go for another choice. I really satisfied with what I am getting from Skype as it is easy to use.