A:Answer The Geek Squad installed my new Smart TV with ROKU streaming last year. This year they installed my Nighthawk (Netgear) modem and ORBI WIFI system and it is faster and better quality signal. If your phone is an IPHONE, you simply go to settings and turn on WIFI Calling. Be aware that if you turn on WIFI Assist, which is another setting, that will greatly increase your data usage, at least it did for me. WIFI calling alone does not.