10 Best Modem Router With Phone Jack For Xfinity Review (October 2026)

⚡ Quick Verdict

📋 How We Evaluated

Products were evaluated based on DOCSIS technology, WiFi standards, voice support, Ethernet ports, and overall performance. Build quality and user reviews were also considered.

Technology	DOCSIS 3.1
WiFi Standard	WiFi 6
Ethernet Ports	1 x2.5Gbps + 4 Gigabit
Voice Support	Yes
Max Internet Speed	800Mbps

What We Found

The NETGEAR Nighthawk CAX80 offers a great combination of DOCSIS 3.1 technology and WiFi 6. It includes one 2.5Gbps Multi-Gig port and four Gigabit Ethernet ports. The device is compatible with Xfinity internet plans up to 800Mbps and supports Xfinity voice service.

Who It’s For

This modem router combo is ideal for users who need fast internet speeds and reliable WiFi coverage. It is suitable for homes with multiple devices and users who also need voice service.

Technology	DOCSIS 3.1
WiFi Standard	WiFi 6
Ethernet Ports	4 Gigabit
Voice Support	Yes
Max Internet Speed	800Mbps

What We Found

The NETGEAR Nighthawk CAX30 offers a great balance of features and price. It supports DOCSIS 3.1 for fast speeds and WiFi 6 for reliable coverage. The device includes four Gigabit Ethernet ports and is compatible with Xfinity internet plans up to 800Mbps.

It also supports Xfinity voice service with enhanced call features.

Who It’s For

This modem router combo is ideal for users who need fast internet speeds and reliable WiFi coverage. It is suitable for homes with multiple devices and users who also need voice service.

Technology	DOCSIS 3.1
WiFi Standard	WiFi 6
Ethernet Ports	4 Gigabit
Voice Support	Yes
Max Internet Speed	800Mbps

What We Found

The NETGEAR Nighthawk CAX30S offers a great combination of DOCSIS 3.1 technology and WiFi 6. It includes four Gigabit Ethernet ports. The device is compatible with Xfinity internet plans up to 800Mbps and supports Xfinity voice service.

Who It’s For

This modem router combo is ideal for users who need fast internet speeds and reliable WiFi coverage. It is suitable for homes with multiple devices and users who also need voice service.

Technology	DOCSIS 3.1-2
WiFi Standard	N/A
Ethernet Ports	1 x2.5Gbps
Voice Support	Yes
Max Internet Speed	2.5Gbps

What We Found

The NETGEAR Nighthawk CM2050V is designed for users who need fast multi-gig speeds and voice support. It supports cable internet plans up to 2.5Gbps and includes a 2.5Gbps Ethernet port. The device also supports Xfinity voice service with enhanced call features.

Who It’s For

This modem is ideal for users who need the fastest internet speeds and reliable voice support. It is suitable for power users who need the best performance from their internet connection.

Technology	DOCSIS 3.0
WiFi Standard	AC2350
Ethernet Ports	4 Gigabit
Voice Support	Yes
Max Internet Speed	800Mbps

What We Found

The ARRIS SURFboard SVG2482AC offers a combination of DOCSIS 3.0 technology and AC2350 WiFi. It includes four Gigabit Ethernet ports and two telephony ports for digital voice. The device is compatible with Xfinity internet and voice service.

Who It’s For

This modem router combo is ideal for users who need a reliable internet connection and voice support. It is suitable for homes with multiple devices and users who need a secure and easy-to-set-up device.

Technology	DOCSIS 3.1
WiFi Standard	N/A
Ethernet Ports	1 Gigabit
Voice Support	No
Max Internet Speed	2Gbps

What We Found

The ARRIS SURFboard SB8200 offers DOCSIS 3.1 technology for fast speeds and includes one Gigabit Ethernet port. The device is compatible with Xfinity internet plans up to 2Gbps. It also supports preset WiFi security for added protection.

Who It’s For

This modem is ideal for users who need the fastest internet speeds. It is suitable for power users who need the best performance from their internet connection.

Technology	DOCSIS 3.1
WiFi Standard	N/A
Ethernet Ports	2 Gigabit
Voice Support	Yes
Max Internet Speed	800Mbps

What We Found

The ARRIS SURFboard T25 offers DOCSIS 3.1 technology for fast speeds and includes two Gigabit Ethernet ports. The device is compatible with Xfinity internet and voice service. It also supports preset WiFi security for added protection.

Who It’s For

This modem is ideal for users who need fast internet speeds and reliable voice support. It is suitable for power users who need the best performance from their internet connection.

Technology	DOCSIS 3.0
WiFi Standard	AC1900
Ethernet Ports	3 Gigabit
Voice Support	Yes
Max Internet Speed	600Mbps

What We Found

The NETGEAR Nighthawk C7100V offers a combination of DOCSIS 3.0 technology and AC1900 WiFi. It includes three Gigabit Ethernet ports and two VoIP ports for voice service. The device is compatible with Xfinity internet and voice service.

Who It’s For

This modem router combo is ideal for users who need a reliable internet connection and voice support. It is suitable for homes with multiple devices and users who need a secure and easy-to-set-up device.

What to Look For Before Buying

When choosing a modem router combo with a phone jack for Xfinity, consider the DOCSIS technology, WiFi standard, Ethernet ports, and voice support. Look for a device that offers fast speeds, reliable coverage, and compatibility with Xfinity internet and voice service.

Check DOCSIS Technology

Look for a modem router combo with DOCSIS 3.1 technology for the fastest internet speeds. DOCSIS 3.1 is the newest technology available from cable internet providers and offers better security and multi-gig networking capabilities.

Value WiFi Standard

Choose a modem router combo with WiFi 6 technology for reliable coverage and fast speeds. WiFi 6 offers improved performance and efficiency compared to previous WiFi standards.

Rating Ethernet Ports

Consider the number and type of Ethernet ports on the modem router combo. Look for a device with Gigabit Ethernet ports for wired connections and a 2.5Gbps Multi-Gig port for the fastest devices.

Verify Voice Support

Ensure the modem router combo supports Xfinity voice service if you need phone service. Look for devices with VoIP ports and enhanced call features for a reliable voice connection.

Frequently Asked Questions

What is the difference between DOCSIS 3.0 and DOCSIS 3.1?

DOCSIS 3.1 is the newest technology available from cable internet providers. It is 10x faster than DOCSIS 3.0, provides better security, reduces lag while gaming, and enables multi-gig networking capabilities. DOCSIS 3.0 is the older technology and may not support the fastest internet speeds.

What is WiFi 6?

WiFi 6 is the latest WiFi standard that offers improved performance and efficiency compared to previous WiFi standards. It provides faster speeds, better coverage, and the ability to handle more connected devices. WiFi 6 technology is ideal for homes with multiple devices and users who need reliable WiFi coverage.

What is a VoIP port?

A VoIP (Voice over IP) port is a port on a modem router combo that allows for voice service over the internet. It enables users to make and receive phone calls using their internet connection.

VoIP ports are essential for users who need phone service and want to combine their internet and voice service.

Can I use any WiFi router with a modem?

Yes, you can use any WiFi router with a modem. However, for the best performance, it is recommended to connect to a WiFi 6 or 7 router. This will ensure that you are getting the fastest speeds and the most reliable coverage for your home internet connection.

How do I set up a modem router combo with Xfinity?

Setting up a modem router combo with Xfinity is typically a straightforward process. Most devices come with easy-to-follow instructions and can be set up using the SURFboard Central App or the NETGEAR Genie app.

Simply connect the device to your cable internet, power it on, and follow the prompts to activate and customize your internet and voice service.

🎯 Final Verdict

The NETGEAR Nighthawk CAX80 is the top pick for users who need a modem router combo with a phone jack for Xfinity. It offers the best combination of DOCSIS 3.1 speeds and WiFi 6 technology for whole-home coverage.

The NETGEAR Nighthawk CAX30S is a strong alternative with excellent performance and voice support. Consider your specific needs and budget when choosing between these two options. Visit Xfinity to find the best plan for your home internet and voice service.