Yes and no. Some people have found that this headset works right away, others have complained that it doesn't (even among owners of the same handsets).
I recommend that if you are doubtful about whether or not this handset will work with your phone, then you should download the app and give it a try. If things work out for you and you are happy with the app, then keep it. Otherwise, send us an email with your order number and we will issue a refund.