A:AnswerGoogle Wifi replaces your traditional router and connects directly to a modem's WAN port to set it up. You’ll still need an Internet Service Provider (ISP) and a modem to connect to the internet. For complete setup instructions, please visit this link: https://support.google.com/wifi/answer/7183148
A:AnswerAs long as your phones are configured to use wifi calling, yes. I have had mesh units in my house ever since they came out and I've had no problems calling over wifi as long as the phone/phone provider support it and it's turned on
A:AnswerYou can check this link to see all the requirements and things you need to set up and get started with your Google Wifi: https://support.google.com/wifi/answer/7183148