All in all, we spent hundreds of hours combing through thousands of user reviews to put together a comprehensive list of the best internet phone modem xfinity compatible on the market. We then delved into these internet phone modem xfinity compatible further and put together detailed reviews so that you can easily pick the best internet phone modem xfinity compatible for your needs.

Best internet phone modem xfinity compatible

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Best internet phone modem xfinity compatible reviews

1. ARRIS Surfboard Docsis 8X4 Cable Modem / Telephone Certified for XFINITY - Download Speed: 343 Mbps (TM822R)

Feature

Compatible with Xfinity Voice & Internet Service Download speeds up to 343 Mbps.
DOCSIS 3.0 Cable Modem. 2 Year Warranty
Eight download and four upload channels.
Battery back up capable (battery not included)
2 carrier-grade Voice over IP (VoIP) Lines
IPv4 & IPv6 Support
1 Gigabit Ethernet Port. Telephone Port:2

2. NETGEAR Cable Modem with Voice CM500V - For Xfinity by Comcast Internet & Voice | Supports Cable Plans Up to 300 Mbps | 2 Phone lines | DOCSIS 3.0, Black, 16x4 w/ Voice (CM500V-100NAS)

Feature

COMPATIBLE WITH XFINITY INTERNET & VOICE SERVICE: Certified by Comcast for Xfinity. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and non-Xfinity voice services.
SAVE MONTHLY RENTAL FEES: Model CM500V replaces your cable modem saving you up to $168/yr in equipment rental fees.
BUILT FOR FAST SPEED: Best for cable provider plans up to 300 Mbps speed.
WORKS WITH ANY WiFi ROUTER: Connect any WiFi router to this modem's ethernet port to support all your wireless devices.
ETHERNET CONNECTIONS: 1 Gigabit Ethernet port connects to your computer or separate WiFi router.
VOICE PHONE SUPPORT: For use with Xfinity Voice service and up to 2 telephone lines with enhanced call features including caller ID, 3-way conference calling, call forwarding and more.
MODEM TECHNOLOGY: Engineered with 16x4 channel bonding and DOCSIS 3.0.
Compatible devices: Compatible devices: Microsoft Windows 7, 8, 10, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network Compatible browsers Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher

3. NETGEAR Cable Modem with Voice CM500V - For Xfinity by Comcast Internet & Voice | Supports Cable Plans Up to 300 Mbps | 2 Phone lines | DOCSIS 3.0 (Renewed)

Feature

COMPATIBLE WITH XFINITY INTERNET & VOICE SERVICE: Certified by Comcast for Xfinity. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and non-Xfinity voice services.
SAVE MONTHLY RENTAL FEES: Model CM500V replaces your cable modem saving you up to $150/yr in equipment rental fees.
BUILT FOR FAST SPEED: Best for cable provider plans up to 300 Mbps speed.
WORKS WITH ANY WiFi ROUTER: Connect any WiFi router to this modem's ethernet port to support all your wireless devices.
ETHERNET CONNECTIONS: 1 Gigabit Ethernet port connects to your computer or separate Wi-Fi router.
VOICE PHONE SUPPORT: For use with Xfinity Voice service and up to 2 telephone lines with enhanced call features including caller ID, 3-way conference calling, call forwarding and more.
MODEM TECHNOLOGY: Engineered with 16x4 channel bonding and DOCSIS 3.0.

4. NETGEAR Cable Modem Wi-Fi Router Combo C6250 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 300 Mbps | AC1600 Wi-Fi Speed | DOCSIS 3.0

Feature

COMPATIBLE WITH ALL MAJOR CABLE INTERNET PROVIDERS: Including certification by Xfinity by Comcast, COX, and Spectrum. NOT compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice service.
SAVE MONTHLY RENTAL FEES: Model C6250 replaces your cable modem and WiFi router saving you up to $168/yr in equipment rental fees.
BUILT FOR FAST SPEED: Best for cable provider plans up to 300 Mbps speed.
FAST WiFi PERFORMANCE: Get up to 1500 sq ft wireless coverage and 25 devices connected with AC1600 speed (up to 1600 Mbps).
VERSATILE CONNECTIONS: 2 Gigabit Ethernet ports and 1 USB port give you fast wired connections to your computer, printer, game box, storage drive, and other devices.
MODEM TECHNOLOGY: Engineered with 16x4 channel bonding and DOCSIS 3.0.
SAFE & SECURE: Includes parental controls, and supports WEP and WPA/WPA2 wireless security protocols.

5. MOTOROLA 8x4 Cable Modem, Model MB7220, 343 Mbps DOCSIS 3.0, Certified by Comcast XFINITY, Time Warner Cable, Cox, BrightHouse, and More (No Wireless)

Feature

This 8x4 DOCSIS 3.0 cable modem provides speeds up to 343 Mbps, eight times faster than DOCSIS 2.0. A Full-Band Capture digital tuner ensures a faster, more reliable Internet.
Cable modem's Ethernet port connects to a computer, HDTV, game station, or wireless router. (This cable modem does not have a built-in wireless router or VoIP telephone adapter. The Motorola MG7310, MG7315, and MG7550 have a built-in wireless router.)
Requires cable Internet service. Certified by Comcast XFINITY, Time Warner Cable, Cox, BrightHouse, and other leading cable service providers for modem ownership programs that typically save rental charges of $120 or more per year
Setup is fast and easy with a few quick steps set out in a Quick Start guide. Experienced USA-based customer support specialists are there to help if you need them.
Attractive, compact design minimizes shelf space, improves cooling, and extends product life while looking great in any home or office. A two-year warranty plus rugged lightning and power surge circuits protect your investment.

6. ARRIS SURFboard SBG10 DOCSIS 3.0 Cable Modem & AC1600 Dual Band Wi-Fi Router, Approved for Cox, Spectrum, Xfinity & others (black)

Feature

3 products in 1: DOCSIS 3 0 Cable Modem, AC1600 dual-band Wi-Fi Router, 2 Port Gigabit Ethernet Router (cable digital voice service not supported)
Compatible with major U S Cable Internet Providers including Cox, Spectrum, Xfinity & others. Cable internet service required. Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
16 downstream & 4 upstream channels. Best for cable internet service plans up to 400 Mbps.
Wi-Fi 5 AC1600 dual-band concurrent Wi-Fi Router with 2 Gigabit Ethernet ports
Setup and manage your network with the SURFboard Manager app

7. TP-Link 16x4 AC1750 Wi-Fi Cable Modem Router | Gateway | 680Mbps DOCSIS 3.0 - Certified for Comcast XFINITY, Spectrum, Cox and More (Archer CR700)

Feature

Certified for XFINITY from Comcast,Time Warner, Cablevision, and Bright House(certification with Cox, Charter and WOW are still in process)
Class-leading 680Mbps DOCSIS 3.0 cable download speeds, 16x faster than DOCSIS 2.0
Channel bonding of up to 16 downstream and 4 upstream channels
1750Mbps Wi-Fi speeds with simultaneous 2.4GHz (450Mbps) and 5GHz (1300Mbps) bands
Six internal antennas and high-powered amplifiers boost signal strength and reduce interference Beamforming technology delivers a more targeted and highly efficient wireless connection Dual-core processor ensures no interruption when simultaneously

8. Netgear C6300-100NAS AC1750 (16x4) DOCSIS 3.0 WiFi Cable Modem Router Combo (C6300) Certified for Xfinity from Comcast, Spectrum, Cox, Cablevision & more,Black

Feature

Compatible with Xfinity from Comcast, Spectrum, Cox, CableONE & more
Three-in-one DOCSIS 3.0 Cable Modem + AC1750 WiFi Router+ 4 Gigabit Wired Switch
DOCSIS 3.0 unleashes 16x faster download speeds than DOCSIS 2.0
Ideal for streaming HD videos, faster downloads, and high-speed online gaming
Works with Cable Internet Providers like XFINITY from Comcast, Cox, Cablevision and more (not compatible with Cable bundled voice services)
Up to 680Mbps modem speed and Dual-Band AC1750 (2.4GHz & 5GHz) WiFi speed. 16x4 channel bonding/ Approved for plans up to 300 Mbps
System requirements : Microsoft Windows 10, Vista, XP, 2000, Mac OS, UNIX, or Linux

9. ARRIS SURFboard SVG2482AC DOCSIS 3.0 Cable Modem & AC1750 dual-band Wi-Fi Router with Voice, Certified for Xfinity Internet & Voice (white)

Feature

4 products in 1: DOCSIS 3. 0 Cable Modem, AC1750 Wi-Fi Access Point, 4-Port Gigiabit Ethernet Router & Xfinity Telephony Modem.
Approved for use with Xfinity internet & voice service. Not compatible with any other cable internet provider.
24 downstream x 8 upstream DOCSIS 3.0 channels, best for Xfinity internet speed plans up to 600 Mbps
4 Gigabit Ethernet ports, 2 telephony ports for digital voice service
Cable internet service required.

10. ARRIS SURFboard SBG7400AC2 DOCSIS 3.0 Cable Modem & AC2350 Dual-Band Wi-Fi Router, Approved for Cox, Spectrum, Xfinity & others (black), Max Download Speed: 1000 Mbps

Feature

3 products in 1: DOCSIS Cable Modem, AC2350 dual-band Wi-Fi, 4 port Gigabit Router (cable digital voice service not supported)
Compatible with major U.S. Cable Internet Providers including Cox, Spectrum, Xfinity & others. Not compatible with ATT, Verizon, CenturyLink or other DSL or Fiber internet providers
24 downstream & 8 upstream channels. Best for cable internet speed plans up to 600 Mbps. Cable internet service required
Wi-Fi 5 AC2350 dual-band concurrent Wi-Fi Router with 4 Gigabit Ethernet ports
Setup and manage your network with the SURFboard Manager app

Conclusion

By our suggestions above, we hope that you can found the best internet phone modem xfinity compatible for you. Please don't forget to share your experience by comment in this post. Thank you!
Sabine M Busch