The NETGEAR C7100V is CableLabs DOCSIS 3.0 three-in-one high-speed cable modem AC1900 WiFi router XFINITY Voice. This cable modem router gives you high-speed Internet connection with combined speeds of up to 1.9Gbps with AC19000 WiFi. Supports two XFINITY Voice telephone lines with battery backup. Enhanced features include 3-way conference calling: caller ID: call forwarding and more. Save up to $120 a year* by eliminating Internet service provider rental fees. Ideal for XFINITY Internet and Voice service.