Most of the people love Skype, its popularity and ease of use. Non of the VoIP software could become famous as skype.
While using the skype, I found the it save the chat history permanently on your local machine. Well it could be good for some but I do not prefer something software occupying my space for nothing. Moreover having some personal chats stored in your PC could also lead to some issues, so its better to delete the chat history in stead of keeping it for longer period of time.
