Have been using MJ for my long distance calls but have retained land line phone as the number has been the same for 30+years. Will be in Berlin and Nice next month and am considering bringing my laptop and MJ so I can call home. Do I need to bring a converter and plug for my laptop? Am staying at Marriotts with wifi and business centers. I doubt if I can plug my MJ into their business center computers but will I be able to use their phones with MJ. Should I buy a headset phone setup? I need to call back to the U.S. frequently. I am a techno beginnner so forgive my ignorance. Thanks