I have been using Skype on my Nexux 7 tablet with no issues. However, yesterday I stopping receiving incoming call alerts. Then I started to not hear any sound when I made a call either. I uninstalled/reinstalled Skpe with no effect, and I called Google who could offer no solution. Today the same thing occured on my daughter's identical tablet. There are no options/tools on the tablet version, and although Skype is still ringing on my regular computer, I also want it to ring on my tablet. What's up?