magicJack and magicJack Plus Support, Reviews, FAQs and Tricks

I HAVE HAD THIS MJ FOR A WEEK AND BEEN ON TECH SUPPORT FOR ABOUT 10 HRS TOTAL WITH NO LUCK.I GET A DIAL TONE BUT WHEN I DIAL A NUMBER I GET THIS POP UP"NO OUTPUT/INPUT AUDIO DEVICES FOUND"I HAVE TRIED EVERY THING YOU CAN DO.