I installed Skype on my Samsung Galaxy Tab 2. Activated, set up account, paid $20.00. Now when try to call a landline nothing happens. Tried it both home wi-fi and connected to my desktop. All I want to do is, once in awhile, have to ability to use my tablet to make a phonecall. Is this possible or have I wasted $20? Skype site says it is compatable with my GT(p3113). Please help!!!!