Skip to content
WiseGuideSpot

10 Best Cable Modem With Phone in 2026

This guide compares the top cable modems with phone support for Xfinity and other providers, helping you choose the right model for voice and internet.

As an Amazon Associate we earn from qualifying purchases. We may earn a commission when you buy through links on this page, at no additional cost to you. Read our affiliate disclosure.As an Amazon Associate we earn from qualifying purchases.Purchases through our links may earn us a commission, at no extra cost to you. Read our affiliate disclosure.
In this guide
  1. 01Top 3 picks
  2. 02Compare all 10
  3. 03In-depth reviews
  4. 04Buying guide
  5. 05Use and care
  6. 06Common questions
  7. 07Final verdict

Finding a reliable cable modem with phone support is essential for households that depend on both high-speed internet and traditional landline services. These devices combine advanced networking technology with voice capabilities, ensuring seamless connectivity for all your digital and communication needs.

We evaluated ten top-rated models based on compatibility, speed performance, voice features, and overall value. Our analysis focuses on DOCSIS standards, channel bonding, and provider certifications to help you select a modem that fits your specific service plan and household requirements.

Each product pick highlights key strengths and potential limitations to guide your decision-making process. While ratings and availability may fluctuate over time, these selections represent the most robust options currently available for reliable internet and voice service integration.

Top 3 Picks for Best Cable Modem with Phone

Best Budget

NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice (CM2050V)
NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice (CM2050V)

4.0Editor score

Supports up to 2.5Gbps speeds
Compatible with Xfinity Voice service
Features two telephone lines with enhanced calling

Check price

Editor's Choice

Motorola MT7711 (24X8) Cable Modem-Two Phone Ports Router
Motorola MT7711 (24X8) Cable Modem-Two Phone Ports Router

4.0Editor score

Combines modem, router, and voice ports
AC1900 dual band Wi-Fi included
Approved by Comcast for Xfinity service

Check price

Best Budget

NETGEAR Cable Modem with Voice CM500V
NETGEAR Cable Modem with Voice CM500V

4.2Editor score

Certified for Xfinity Internet and Voice
Supports up to 300 Mbps plans
Includes two phone lines with caller ID

Check price

Top 10 Best Cable Modem with Phone in 2026 Compared

This side-by-side comparison reviews all ten selected modems to highlight their unique specifications and capabilities. Read on to see how each model performs regarding speed, voice integration, and provider compatibility.

ProductsSpecificationsEditor scorePrice
1NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice (CM2050V)

Best Budget

NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice (CM2050V)
DOCSIS 3.1 technology
Up to 2.5Gbps speeds
Two phone lines supported
Xfinity Voice compatible
4.0Editor score

Check price

2NETGEAR Nighthawk Modem Router Combo (CAX30)

Editor's Choice

NETGEAR Nighthawk Modem Router Combo (CAX30)
DOCSIS 3.1 modem
AX2700 WiFi 6 router
Up to 1Gbps speeds
No voice service support
4.1Editor score

Check price

3Motorola MT7711 (24X8) Cable Modem-Two Phone Ports Router

Best Budget

Motorola MT7711 (24X8) Cable Modem-Two Phone Ports Router
DOCSIS 3.0 modem
AC1900 dual band router
Two Xfinity Voice ports
Up to 400 Mbps speed
4.0Editor score

Check price

4ARRIS (T25) - Cable Modem

ARRIS (T25) – Cable Modem
DOCSIS 3.1 technology
Two 1 Gbps ports
Up to 800 Mbps speed
Xfinity Internet and Voice
4.1Editor score

Check price

5NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo (C7000)

NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo (C7000)
DOCSIS 3.0 modem
AC1900 WiFi 5 speeds
No voice service support
Up to 800 Mbps speed
4.2Editor score

Check price

6NETGEAR Nighthawk Cable Modem with Voice (CM1150V)

NETGEAR Nighthawk Cable Modem with Voice (CM1150V)
DOCSIS 3.1 technology
Up to 800 Mbps speed
Two telephone lines included
Link aggregation support
4.1Editor score

Check price

7NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem for Xfinity, Cox & Spectrum

NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem for Xfinity, Cox & Spectrum
DOCSIS 3.1 modem
Up to 2.5Gbps speed
No voice service support
Multiple Ethernet ports
4.3Editor score

Check price

8NETGEAR Nighthawk Cable Modem WiFi Router Combo with Voice C7100V

NETGEAR Nighthawk Cable Modem WiFi Router Combo with Voice C7100V
DOCSIS 3.0 modem
AC1900 WiFi speed
Two VoIP ports included
Up to 600 Mbps speed
4.2Editor score

Check price

9NETGEAR Cable Modem with Voice CM500V

NETGEAR Cable Modem with Voice CM500V
DOCSIS 3.0 technology
Up to 300 Mbps speed
Two phone lines supported
16×4 channel bonding
4.2Editor score

Check price

10ARRIS Surfboard (24x8) DOCSIS 3.0 Cable Modem Plus AC1750 Dual Band Wi-Fi Router and Xfinity Telephone

ARRIS Surfboard (24×8) DOCSIS 3.0 Cable Modem Plus AC1750 Dual Band Wi-Fi Router and Xfinity Telephone
DOCSIS 3.0 modem
AC1750 dual band router
Xfinity telephony support
Up to 600 Mbps speed
4.0Editor score

Check price

1. NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice (CM2050V) – Best Premium Cable Modem with Phone

NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice (CM2050V) – for Cable Plans up to 2.5Gbps - DOCSIS 3.1-2 Phone Lines4.0Editor scoreCheck price on Amazon
NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice (CM2050V)
DOCSIS 3.1 certified
Up to 2.5Gbps speeds
Supports two voice lines
Xfinity Triple Play plan

This NETGEAR Nighthawk model stands out as the fastest modem designed specifically for Xfinity Voice users. With a 4.0 star rating, it delivers impressive multi-gigabit performance while maintaining reliable voice service. It is ideal for households needing maximum speed and stable telephone connectivity.

Pros

  • Supports multi-gigabit speeds
  • Certified for Xfinity Voice
  • Fast setup process
  • Durable build quality

Cons

  • Only works with Xfinity
  • Higher price point

We may earn a commission when you buy through this link, at no additional cost to you.

The modem supports cable plans up to 2.5Gbps and includes two phone lines with enhanced features like caller ID and conference calling. It works with any WiFi router but pairs best with NETGEAR WiFi 6 or 7 systems. The built-in 2.5Gbps Ethernet port ensures your wired devices get the fastest connection possible.

One trade-off is that it only supports Xfinity Internet and Voice services, excluding other major providers like Verizon or AT&T. However, this limitation is acceptable if you are already a verified Xfinity customer looking for top-tier performance. The setup is straightforward, and the device is built for long-term reliability.

Buy this if you want the highest possible speeds and need two voice lines with full Xfinity features. It is the premium choice for tech-savvy users who want a future-proof modem that grows with your internet plan.

Future-Proof Speed

The support for up to 2.5Gbps ensures your modem remains relevant even as providers upgrade network tiers over time.

Voice Clarity

Enhanced call features like 3-way conference calling make this modem a strong choice for families needing reliable landline services.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

2. NETGEAR Nighthawk Modem Router Combo (CAX30) – Best All-in-One Gateway

NETGEAR Nighthawk Modem Router Combo (CAX30) DOCSIS 3.1 Cable Modem and WiFi 6 Router - AX2700 2.7 Gbps - Compatible with Xfinity, Spectrum, Cox, and More - Gigabit Wireless Internet4.1Editor scoreCheck price on Amazon
NETGEAR Nighthawk Modem Router Combo (CAX30)
DOCSIS 3.1 technology
AX2700 WiFi 6 router
Up to 1Gbps speeds
Coverage up to 2000 sq ft

The CAX30 is a powerful combo unit that simplifies your home network by merging the modem and router into one device. Rated 4.1 stars, it offers robust performance for users needing reliable gigabit speeds and broad Wi-Fi coverage. It is a top choice for families who prioritize internet speed over phone services.

Pros

  • Modem and router combined
  • Works with multiple providers
  • Strong WiFi 6 coverage
  • Easy app management

Cons

  • No voice service support
  • Requires separate modem for voice

We may earn a commission when you buy through this link, at no additional cost to you.

This device supports major providers like Xfinity, Spectrum, and Cox, offering great flexibility for different internet plans. The AX2700 WiFi 6 technology provides coverage up to 2,000 square feet, ensuring stable connections in every room. You can manage your network easily using the Nighthawk app on iOS or Android.

While it delivers excellent internet performance, it lacks voice support, making it unsuitable for households that need a landline connection. If you rely on voice services, you would need to pair this with a separate voice-compatible modem. For pure internet needs, however, its performance is unmatched.

Purchase this if you want a single device that handles both high-speed internet and strong Wi-Fi without needing extra equipment. It is perfect for renters or homeowners who value simplicity and performance in their networking setup.

Provider Flexibility

The ability to work with Xfinity, Spectrum, and Cox makes this modem a versatile choice for users switching providers.

Whole-Home Coverage

Dual-band AX2700 coverage ensures strong signals throughout your home, even with many connected devices.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

3. Motorola MT7711 (24X8) Cable Modem-Two Phone Ports Router – Best Budget Option

Motorola MT7711 (24X8) Cable Modem-Two Phone Ports Router, DOCSIS 3.0 Modem, AC1900 Dual Band Wi-Fi Gigabit Router for Comcast Xfinity - (Renewed)4.0Editor scoreCheck price on Amazon
Motorola MT7711 (24X8) Cable Modem-Two Phone Ports Router
DOCSIS 3.0 technology
AC1900 dual band router
Two phone lines included
Up to 400 Mbps speed

The Motorola MT7711 is a cost-effective 3-in-1 solution that combines a cable modem, router, and voice ports. With a 4.0 star rating, it offers solid performance for Xfinity users who want to save on monthly rental fees. It is particularly suitable for budget-conscious households that still need reliable voice service.

Pros

  • Affordable 3-in-1 unit
  • Includes router and voice ports
  • Xfinity certified
  • Strong signal boost

Cons

  • Renewed item only
  • No backup battery included

We may earn a commission when you buy through this link, at no additional cost to you.

This model includes AC1900 dual-band Wi-Fi and two Xfinity Voice compatible phone ports. It supports internet speeds up to 400 Mbps, which covers most standard usage needs. The built-in power boost amplifiers help enhance range and signal strength across your home. However, note that it is sold as a renewed product.

A key limitation is that the backup battery option is not included, meaning phone service may stop during power outages unless you purchase it separately. Despite this, the savings on rental fees over time make it an excellent value. The setup process is simple, and it works exclusively with Comcast Xfinity.

Buy this if you need a complete modem, router, and voice setup on a budget. It is the best choice for small to medium homes that want to eliminate equipment rental charges without sacrificing voice capabilities.

3-in-1 Convenience

This single unit replaces three separate devices, reducing clutter and simplifying your home network setup.

Signal Enhancement

Wireless power boost and AnyBeam beamforming improve Wi-Fi range, ensuring better coverage throughout your home.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

4. ARRIS (T25) – Cable Modem – Best DOCSIS 3.1 Voice Modem

ARRIS (T25) - Cable Modem - Fast DOCSIS 3.1 Gigabit Cable Modem , Comcast Xfinity Internet & Voice , Two 1 Gbps Ports, 800 Mbps Max with Xfinity Plan4.1Editor scoreCheck price on Amazon
ARRIS (T25) – Cable Modem
DOCSIS 3.1 technology
Two 1 Gbps Ethernet ports
Up to 800 Mbps speed
Xfinity Internet and Voice

The ARRIS SURFboard T25 is a sleek, high-speed modem that supports DOCSIS 3.1 technology for improved performance. Rated 4.1 stars, it is designed for Xfinity Internet and Voice service, offering two 1 Gbps Ethernet ports for fast wired connections. It is an ideal choice for users who want to own their modem and save on rental fees.

Pros

  • DOCSIS 3.1 support
  • Fast gigabit Ethernet ports
  • Xfinity certified for voice
  • Simple app-based setup

Cons

  • No built-in router
  • Limited to Xfinity

We may earn a commission when you buy through this link, at no additional cost to you.

This modem allows internet speeds up to 800 Mbps and features preset Wi-Fi security settings for added peace of mind. The SURFboard Central App simplifies activation and setup, requiring just a plug-in and follow-the-instructions process. It connects seamlessly to any Wi-Fi router for full home coverage.

While it excels at providing fast and secure internet with voice support, it does not include a built-in router. You will need to purchase a separate router if you need Wi-Fi capabilities. This is a minor drawback for users who already have a router but a consideration for those starting fresh.

Choose this if you need a reliable modem for Xfinity Voice and want the speed benefits of DOCSIS 3.1. It offers a great balance of performance, security, and ease of use for modern households.

Speed and Security

DOCSIS 3.1 technology provides faster speeds and better security compared to older DOCSIS 3.0 models.

Simplified Activation

The SURFboard Central App makes the activation process quick and stress-free for new users.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

5. NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo (C7000) – Best for Multiple Providers

NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo (C7000) - Compatible with Major Cable Providers incl. Xfinity & Cox - Cable Plans up to 800Mbps - AC1900 (Up to 1.9Gbps) - DOCSIS 3.04.2Editor scoreCheck price on Amazon
NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo (C7000)
DOCSIS 3.0 technology
AC1900 WiFi 5 speeds
No voice service support
Works with Xfinity and Cox

The C7000 is a versatile combo unit that combines a cable modem and WiFi 5 router into one device. With a 4.2 star rating, it offers reliable performance for users needing internet speeds up to 800 Mbps. It supports major cable providers like Xfinity and Cox, making it a flexible choice for many households.

Pros

  • Combo modem and router
  • Compatible with multiple providers
  • Good speed for most homes
  • Easy app control

Cons

  • No voice service support
  • Older WiFi 5 technology

We may earn a commission when you buy through this link, at no additional cost to you.

This model features AC1900 dual-band Wi-Fi and four Gigabit Ethernet ports for wired connections. The Nighthawk app allows you to manage your network, run speed tests, and pause internet on specific devices easily. It is a solid option for families who prioritize internet connectivity over landline services.

The main limitation is that it does not support bundled voice services, so it cannot replace a cable modem with phone lines. Additionally, it uses older WiFi 5 technology rather than the newer WiFi 6 standard. However, for users with standard internet plans, the performance remains strong and consistent.

Buy this if you need a reliable modem and router combo that works across multiple providers. It is a practical choice for households that want to save on rental fees while maintaining strong wireless performance.

Provider Compatibility

Works with both Xfinity and Cox, giving you flexibility if you move or switch internet providers.

Network Management

The Nighthawk app offers intuitive controls for managing devices and optimizing your home network.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

6. NETGEAR Nighthawk Cable Modem with Voice (CM1150V) – Best for Xfinity Voice

NETGEAR Nighthawk Cable Modem with Voice (CM1150V) - Certified for Xfinity by Comcast Internet & Voice Plans Up to 800Mbps | 2 Phone Lines | 4 x 1G Ethernet Ports | DOCSIS 3.14.1Editor scoreCheck price on Amazon
NETGEAR Nighthawk Cable Modem with Voice (CM1150V)
DOCSIS 3.1 technology
Up to 800 Mbps speed
Two telephone lines included
Link aggregation support

The CM1150V is a robust modem designed specifically for Xfinity Internet and Voice plans, rated 4.1 stars. It supports speeds up to 800 Mbps and includes two telephone lines with enhanced call features. This device is perfect for users who want to own their modem and avoid monthly rental fees.

Pros

  • DOCSIS 3.1 certified
  • Two phone lines supported
  • Fast Ethernet ports
  • Reliable Xfinity voice

Cons

  • No built-in Wi-Fi
  • High cost

We may earn a commission when you buy through this link, at no additional cost to you.

It features four Gigabit Ethernet ports and supports link aggregation for faster wired connections up to 2Gbps. You can connect any WiFi router to it, giving you the flexibility to choose your preferred wireless network. The setup is straightforward, and it works exclusively with Xfinity service.

This modem lacks built-in Wi-Fi, meaning you must use a separate router. This may be a drawback for those seeking an all-in-one solution. However, the high-speed Ethernet capabilities make it ideal for gaming or streaming setups where wired connections are preferred.

Choose this if you need a high-performance modem for Xfinity Voice with strong wired networking capabilities. It is a premium choice for users who prioritize speed and stability over convenience.

Link Aggregation

Combining two Ethernet ports allows for faster wired speeds, which is great for 4K streaming or gaming.

Call Features

Features like caller ID and 3-way conference calling enhance the functionality of your home phone service.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

7. NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem for Xfinity, Cox & Spectrum – Best High-Speed Data

NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem for Xfinity, Cox & Spectrum4.3Editor scoreCheck price on Amazon
NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem for Xfinity, Cox & Spectrum
DOCSIS 3.1 technology
Up to 2.5Gbps speeds
No voice service support
Multi-gig Ethernet ports

The CM3000 is the fastest modem on this list, rated 4.3 stars, and supports speeds up to 2.5Gbps with mid/high-split technology. It works with Xfinity, Cox, and Spectrum, offering great flexibility for internet-only users. This modem is a top pick for households needing maximum bandwidth for gaming or streaming.

Pros

  • Fastest speeds available
  • Works with multiple providers
  • Multiple gigabit ports
  • Future-proof technology

Cons

  • No voice service support
  • Requires separate router

We may earn a commission when you buy through this link, at no additional cost to you.

It features multiple gigabit Ethernet ports with link aggregation for wired speeds up to 2Gbps. The device is built for stability, with low-latency performance for video calls and online gaming. While it lacks built-in Wi-Fi, pairing it with a high-end router creates a powerful network.

Because it does not support voice services, it is not suitable for users who need a landline connection. However, for pure internet performance, it is unmatched. The setup is quick, and the device is compatible with both DOCSIS 3.0 and 3.1 standards.

Buy this if you need the fastest possible internet speeds and want to future-proof your network. It is ideal for tech enthusiasts and gamers who want the best performance from their cable provider.

Ultra-Fast Speeds

The 2.5Gbps download speed ensures your network can handle the latest high-bandwidth applications.

Network Flexibility

Link aggregation allows you to combine ports for faster wired connections if your router supports it.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

8. NETGEAR Nighthawk Cable Modem WiFi Router Combo with Voice C7100V – Best All-in-One Voice Unit

NETGEAR Nighthawk Cable Modem WiFi Router Combo with Voice C7100V - Supports Xfinity Cable & Voice Plans Up to 600Mbps, 2 Phone Lines, AC1900 WiFi Speed, DOCSIS 3.04.2Editor scoreCheck price on Amazon
NETGEAR Nighthawk Cable Modem WiFi Router Combo with Voice C7100V
DOCSIS 3.0 technology
AC1900 WiFi 5 speeds
Two VoIP ports included
Up to 600 Mbps speed

The C7100V is a complete 3-in-1 solution that integrates a modem, router, and voice ports into one unit. Rated 4.2 stars, it supports Xfinity plans up to 600 Mbps and includes two VoIP ports. This is an ideal choice for users who want a single device for both internet and telephone needs.

Pros

  • All-in-one voice and Wi-Fi
  • Compatible with Xfinity
  • USB ports included
  • Battery backup ready

Cons

  • Older DOCSIS 3.0
  • Not compatible with all providers

We may earn a commission when you buy through this link, at no additional cost to you.

This model features AC1900 WiFi 5 and supports internet speeds up to 600 Mbps. It includes two USB ports for additional device connectivity and supports battery backups for power outage protection. The setup is simple, and it is certified for Xfinity cable and voice plans.

One limitation is that it uses the older DOCSIS 3.0 standard, which may limit speed potential compared to newer models. Additionally, it is not compatible with providers outside of Xfinity. Despite this, it offers a seamless all-in-one experience for Xfinity users.

Choose this if you need a reliable all-in-one device that handles both internet and phone services. It simplifies your home network while maintaining essential voice features.

Seamless Integration

Having a modem, router, and voice ports in one unit reduces cable clutter and simplifies setup.

USB Connectivity

USB ports allow for easy connection of storage devices or printers directly to your network.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

9. NETGEAR Cable Modem with Voice CM500V – Most Affordable Voice Modem

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)4.2Editor scoreCheck price on Amazon
NETGEAR Cable Modem with Voice CM500V
DOCSIS 3.0 technology
Up to 300 Mbps speed
Two phone lines supported
Xfinity certified

The CM500V is a budget-friendly modem that supports Xfinity Internet and Voice plans up to 300 Mbps. With a 4.2 star rating, it is a reliable choice for households that do not need ultra-high speeds. It supports two telephone lines with features like caller ID and call forwarding.

Pros

  • Very affordable price
  • Certified for Xfinity Voice
  • Simple setup process
  • Reliable performance

Cons

  • Lower speed limits
  • Requires separate router

We may earn a commission when you buy through this link, at no additional cost to you.

This modem features 16×4 channel bonding and works with any WiFi router. It replaces your cable modem to save you up to $168 per year in rental fees. The device is simple to set up and provides stable internet and voice connections for everyday use.

While it is limited to 300 Mbps speeds, this is sufficient for most streaming and browsing activities. It requires a separate router for Wi-Fi connectivity, which is a consideration for users looking for an all-in-one solution. However, its reliability and cost-efficiency make it a great value.

Buy this if you need an affordable, reliable modem for standard Xfinity plans with voice support. It is perfect for small households or basic internet users.

Cost Savings

Saving up to $168 per year in rental fees makes this a smart financial decision for long-term users.

Voice Features

Enhanced call features like caller ID and call forwarding are included at no extra cost.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

10. ARRIS Surfboard (24×8) DOCSIS 3.0 Cable Modem Plus AC1750 Dual Band Wi-Fi Router and Xfinity Telephone – Best Value for Xfinity

ARRIS Surfboard (24x8) DOCSIS 3.0 Cable Modem Plus AC1750 Dual Band Wi-Fi Router and Xfinity Telephone, 1 Gbps Max Speed, Certified for Comcast Xfinity Only (SVG2482AC) (Renewed)4.0Editor scoreCheck price on Amazon
ARRIS Surfboard (24×8) DOCSIS 3.0 Cable Modem Plus AC1750 Dual Band Wi-Fi Router and Xfinity Telephone
DOCSIS 3.0 technology
AC1750 dual band router
Xfinity telephony support
Up to 600 Mbps speed

This ARRIS Surfboard model is a 3-in-1 combo modem, router, and phone unit certified for Xfinity. Rated 4.0 stars, it offers a budget-friendly solution for users needing both internet and voice services. It supports plans up to 600 Mbps and includes an AC1750 dual-band router.

Pros

  • 3-in-1 combo unit
  • Includes Wi-Fi router
  • Xfinity telephony support
  • Great value option

Cons

  • Renewed product only
  • Not for Gigabit plans

We may earn a commission when you buy through this link, at no additional cost to you.

The modem supports 24 download and 8 upload channels, providing efficient connectivity for most households. It includes four Gigabit Ethernet ports for wired devices and supports Xfinity telephony with full features. Note that it is a renewed product, so inspect the unit upon arrival.

This model is not approved for Xfinity Gigabit speed packages, which may be a limitation for users needing maximum bandwidth. However, it is a solid choice for standard cable plans. The all-in-one design reduces clutter and simplifies home network setup.

Purchase this if you need a value-oriented, all-in-one solution for Xfinity Internet and Voice. It is a practical choice for average households looking for savings without sacrificing essential features.

All-in-One Design

Combining modem, router, and telephone functions into one device saves space and reduces wiring complexity.

Dual-Band Router

AC1750 dual-band Wi-Fi ensures stable connections for devices using both 2.4GHz and 5GHz frequencies.

Check price on Amazon

We may earn a commission when you buy through this link, at no additional cost to you.

Buying Guide – How to Choose the Best Cable Modem with Phone

Selecting the right cable modem with phone support requires understanding several key factors to ensure compatibility and performance for your needs.

Provider Compatibility

Always verify that the modem is certified for your specific internet provider. For example, many models are optimized for Xfinity and may not work with AT&T or Verizon services. Check the manufacturer's compatibility list before purchasing to avoid activation issues.

Ensure the modem supports both internet and voice services if you need a landline connection. Most devices are provider-specific for voice features.

DOCSIS Technology Version

DOCSIS 3.1 modems offer faster speeds and better efficiency than DOCSIS 3.0 models. If you have high-speed internet plans, DOCSIS 3.1 is recommended to future-proof your purchase. DOCSIS 3.0 modems are sufficient for speeds up to 600 Mbps.

Newer DOCSIS versions provide better security and reduced lag, which is important for gaming or video calls.

Speed Capacity

Match the modem's maximum speed capacity to your current internet plan. Choosing a modem that is too slow can bottleneck your connection, while one that is too fast may be unnecessary. For speeds above 800 Mbps, look for multi-gigabit capabilities.

Consider future upgrades when selecting a speed tier to avoid replacing the modem again soon.

Voice Port Configuration

Modems with phone support typically include one or two phone ports. Ensure the device supports the number of lines you need and offers features like caller ID or conference calling. Some models allow for enhanced call features that are valuable for home offices.

Check if the modem supports backup batteries to maintain phone service during power outages.

Combo vs. Separate Units

Combo modems include a built-in router, while separate units require you to purchase a router independently. Combos are convenient for renters or those with small homes, whereas separate units offer more flexibility and performance. Consider your existing equipment before choosing.

Separate units often allow for better Wi-Fi performance and upgrades to newer router technologies.

Channel Bonding

Channel bonding determines how many data streams the modem can handle. Higher numbers like 24×8 channels provide better performance during peak hours compared to 8×4 channels. More bonding means more stable connections when multiple devices are active.

Look for modems with higher channel counts if you have a large household with many connected devices.

Rental Savings Potential

Owning your modem can save you significant money over time. Most providers charge $10 to $15 per month for rentals, which adds up quickly. Calculate the savings based on your plan and how long you plan to stay with the provider.

Choose a reliable, well-rated modem to ensure long-term savings without frequent replacements.

Ease of Setup

Many modern modems offer app-based setup or plug-and-play activation. Check if the modem supports a dedicated app for easy management and troubleshooting. Simple setup saves time and reduces frustration for non-technical users.

Look for models with clear instructions and responsive customer support in case activation issues arise.

How to Use and Care for Your Cable Modem with Phone

First, connect the coaxial cable from your wall outlet to the modem's coax port and plug the power adapter into a surge protector. Ensure the modem is placed in a well-ventilated area to prevent overheating during heavy use.

Next, connect your computer or router via Ethernet to activate the internet service. For voice services, plug your phone directly into the phone port on the modem. Follow the on-screen instructions or call your provider to complete activation.

Finally, restart your modem periodically to clear memory and maintain optimal performance. Avoid placing the device near other electronics that may cause interference, and keep it clean from dust to ensure longevity.

Frequently Asked Questions

Do I need to buy a router if I buy a modem with phone support?

Not always. Some modems come as combo units with built-in routers, while others require a separate router. Check if the model you are considering includes Wi-Fi capabilities. If it does not, you will need to purchase a compatible router for wireless access.

Can I use a modem with phone support on providers other than Xfinity?

Most modems with phone support are specific to Xfinity and may not work with other providers. Always verify the compatibility list in the product description. Using an incompatible modem can lead to service activation failures or limited functionality.

Will my phone service work during a power outage?

Phone service on these modems typically requires a working power source. Unless you have a battery backup unit (often sold separately), your voice service will stop during outages. Check your provider's policies on emergency backup power options.

How do I know which DOCSIS version I need?

For speeds up to 800 Mbps, DOCSIS 3.0 is sufficient. For faster plans, DOCSIS 3.1 is recommended for better efficiency. Consider future upgrades when choosing to avoid needing another modem soon.

Are these modems compatible with gigabit internet plans?

Some models support multi-gigabit speeds, while others cap at 800 Mbps or 600 Mbps. Check the modem's maximum speed rating against your plan. For gigabit plans, ensure the modem supports DOCSIS 3.1 and multi-gigabit ports.

How do I activate a new modem with my provider?

Activate by calling your provider's activation line or using their online portal. Enter the modem's MAC address and serial number when prompted. Follow the instructions to reset your connection and verify service is working correctly.

Final Thoughts on Choosing the Best Cable Modem with Phone

Choosing the best cable modem with phone support depends on your provider, speed needs, and budget. The NETGEAR Nighthawk CM2050V stands out for premium multi-gigabit performance, while the CM500V offers excellent value for standard plans.

Prioritize compatibility with your internet provider and ensure the modem supports both internet and voice features you require. A DOCSIS 3.1 model is recommended for future-proofing your home network.

Always check current availability and verify compatibility before purchasing to ensure seamless service activation. These selected models provide reliable options for households needing high-speed internet and landline connectivity.