Netgear Nighthawk C7100V AC1900 WiFi Cable Modem Router for XFINITY Internet and Voice review: Netgear combines cable modem, Wi-Fi and voice service in a new gateway for Comcast - CNET
Best Buy: NETGEAR Nighthawk 32 x 8 DOCSIS 3.1 Voice Cable Modem, Voice support Black CM1150V-100NAS
ARRIS SURFboard 24 x 8 DOCSIS 3.0 Voice Cable Modem with AC1750 Dual-Band Wi-Fi Router for Xfinity White SVG2482AC - Best Buy
NETGEAR 16x4 Cable Modem with Voice, DOCSIS 3.0 | Certified for XFINITY by Comcast, Spectrum, Time Warner, Charter, and more (CM500V-100NAS) - Walmart.com
MOTOROLA MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band WiFi Gigabit Router, for Comcast XFINITY Internet and Voice - Newegg.com