I won't bore you with the details, but suffice it to say that this company is awful.  I contacted them about a problem with their product and they were completely unwilling to help.  As mentioned in other reviews, there is no way to contact them except by a very slow online chat.  The representatives are not native English speakers, so they must be outsourced.  I can't believe that a product that is telephone related does not have a phone number for customer service! 
When the product broke (as I knew it would) within 2 weeks of installation, I brought it back to the store where I purchased it instead of sending it back to the company for their guarantee.  I'm sure if I would have sent it back, it would have been a complete headache getting a replacement, just like every other interaction with them was.
The store I returned it to made an exception because I returned it after more than 30 days.  It seemed to me that they'd had other problems with magicjack, they gave me a gift card for the purchase price, no questions asked.  You can be assured that I did NOT want to exchange the broken one for a new one.
I implore you to steer clear of magicjack.  It works pretty well, but it's not worth the headache or knowing you are giving your money to such a terrible company. 

Recommended: No