Finally, something that does what it says! I was using a MagicJack and had nothing but trouble. Every day there was a new problem with it! Mostly people could only hear every other word and it would dial people at random. Friends would call and ask "Did you just call me?" I've had the Zoom for a week now and have yet to have a problem! It's such a relief knowing your calls will go though and people can actually hear you! I only have the Voip line hooked up. I was relieved to know I didn't have to have a landline in order for it to work because my landline was TragicJack, as I refer to it! What's also nice is you can use your regular phone. So I'm able to use my SKYPE on my old cordless phone!