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In this guide
Finding a reliable cable modem with phone capabilities is essential for households that need both high-speed internet and traditional voice service. These devices combine modem functionality with VoIP ports, allowing you to keep your landline while upgrading your internet connection. Modern units support DOCSIS 3.1, ensuring you get the fastest speeds available from your provider without sacrificing call quality.
We evaluated ten top-rated modems based on compatibility, speed potential, voice features, and build quality. Our analysis focuses on models that support Xfinity Voice and other cable providers offering bundled services. Each product was assessed for its ability to handle multi-gigabit plans, support multiple phone lines, and maintain stability during peak usage times.
Each pick in this list highlights specific strengths, from budget-friendly options to premium high-speed units. You will find detailed breakdowns of features, pros, cons, and ideal use cases for every model. Please note that prices and availability change frequently, so verify current details before making your final purchase decision.
Top 3 Picks for Best Cable Modem with Phone
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Top 10 Best Cable Modem with Phone in 2026 Compared
This side-by-side comparison outlines the key specifications and capabilities of each selected cable modem with phone support. We highlight speed limits, channel bonding, voice features, and compatibility to help you identify the right match for your provider and household needs.
1. NETGEAR Nighthawk CM2050V – Best Overall Cable Modem with Phone
The NETGEAR Nighthawk CM2050V stands out as the premier choice for households needing high-speed internet alongside reliable voice service. Rated highly for its performance, this modem delivers multi-gigabit speeds while maintaining crystal-clear phone lines for home use.
Pros
- Supports fastest cable plans available
- Enhanced call features included
- Certified for Xfinity Voice
- Multiple Gigabit Ethernet ports
- Easy setup process
Cons
- Limited to Xfinity provider
- Requires separate WiFi router
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This device is engineered for DOCSIS 3.1, allowing it to handle plans up to 2.5Gbps without bottlenecks. It supports two telephone lines with advanced features like caller ID and three-way calling, making it ideal for families or small offices needing both data and voice.
While it is powerful, users should note it only works with Xfinity and requires a separate router for WiFi. The high price point might be steep for some, but the speed headroom justifies the investment for future-proofing your setup.
If you want the fastest connection possible while keeping your landline, this is the definitive pick. It offers the best balance of speed, voice functionality, and reliability on the market today.
Future-Proof Multi-Gigabit Performance
With support for up to 2.5Gbps, this modem ensures your home network remains fast even as ISPs roll out faster tiers.
Advanced Voice Capabilities
Enhanced call features such as conference calling and forwarding make it a robust replacement for traditional landline setups.
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2. NETGEAR Nighthawk CAX30 – Best Modem Router Combo
The NETGEAR Nighthawk CAX30 combines a high-speed modem and WiFi 6 router into one sleek unit, simplifying setup for many users. It is designed to maximize internet potential with smooth performance for gaming and streaming across your home.
Pros
- All-in-one convenience
- Strong WiFi 6 coverage
- Compatible with multiple ISPs
- Easy mobile app management
- Built-in security features
Cons
- Not compatible with voice plans
- Combo design may limit upgrades
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This model works with Xfinity, Spectrum, and Cox plans up to 1Gbps. It offers dual-band AX2700 WiFi covering up to 2,000 sq ft and includes four Gigabit Ethernet ports for wired devices, ensuring stability where it matters most.
However, it does not support bundled voice services, which limits its utility for households needing phone lines. The combo approach means if one part fails, you replace the whole device, potentially increasing long-term costs.
Choose this if you want a simplified setup with top-tier WiFi performance but do not need voice capabilities. It is a solid all-around choice for general internet users.
Unified Connectivity Solution
By merging modem and router functions, this unit reduces cable clutter and streamlines network configuration for home users.
Advanced WiFi 6 Coverage
Dual-band WiFi 6 ensures reliable connections in every room, even with multiple devices connected simultaneously.
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3. Motorola MT7711 – Best Value Combo Modem
The Motorola MT7711 is a three-in-one device that integrates a modem, router, and voice ports, offering significant convenience for Xfinity users. It is well-rated for its ability to eliminate rental fees while delivering reliable performance for standard plans.
Pros
- Combines modem, router, phone
- Affordable pricing option
- Supports Xfinity Voice
- Four Gigabit Ethernet ports
- Renewed condition available
Cons
- Only compatible with Xfinity
- DOCSIS 3.0 limits speed
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It supports speeds up to 400 Mbps with an AC1900 router and includes two Xfinity Voice compatible ports. The built-in power boost and beamforming technology improve wireless range and signal focus, ensuring better connectivity throughout the home.
One limitation is that it only works with Comcast Xfinity, which may not suit everyone. Additionally, DOCSIS 3.0 technology limits max speeds compared to newer 3.1 models, making it less future-proof for gigabit upgrades.
This is an excellent choice for budget-conscious Xfinity subscribers needing phone service. It provides good value by bundling essential functions into one affordable device.
Cost-Effective Integration
Replacing multiple devices with one unit saves money and simplifies your home networking setup effectively.
Reliable Voice Support
Designed specifically for Xfinity Voice, it ensures clear calls and supports essential features like caller ID seamlessly.
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4. ARRIS T25 – Best Reliable Modem
The ARRIS T25 is a robust DOCSIS 3.1 modem designed specifically for Xfinity Internet and Voice services. It is rated highly for reliability, making it a trusted choice for users wanting to save on rental fees while maintaining high speeds.
Pros
- DOCSIS 3.1 speed
- Voice support included
- Simple activation process
- Secure by design
- Affordable for DOCSIS 3.1
Cons
- Xfinity only compatibility
- No built-in router
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This modem supports plans up to 800 Mbps and includes two ports for voice service. Setup is straightforward with the SURFboard Central App, and it offers better security and reduced lag compared to older DOCSIS 3.0 models.
Users should note it requires a separate router for WiFi connectivity. The focus on core modem performance means it lacks extra features but delivers consistent results for the provider.
Choose this if you prioritize speed and stability with Xfinity Voice. It is a solid, no-fuss option for maintaining a fast internet connection.
Next-Gen Speed Capability
DOCSIS 3.1 ensures you get 10x faster speeds than older models, ready for future ISP upgrades.
User-Friendly Setup
The SURFboard Central App guides you through activation quickly, reducing technical barriers for users.
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5. NETGEAR C7000 – Best Versatile Combo
The NETGEAR C7000 combines a modem and AC1900 router into one unit, ideal for users needing high-speed internet without voice requirements. It is certified for major providers like Xfinity and Cox, offering flexibility in provider choice.
Pros
- Works with multiple ISPs
- AC1900 WiFi speed
- Easy setup via app
- Strong security features
- Great value for price
Cons
- No voice service support
- Older DOCSIS 3.0
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This model supports plans up to 800 Mbps and uses WiFi 5 technology for reliable streaming and gaming. Features like Beamforming+ and the Nighthawk App make network management intuitive for users.
It does not support voice services, which limits its utility for landline users. However, for pure internet speed at a reasonable price, it remains a strong contender among combo units.
Select this if you need a reliable combo modem-router for high-speed internet across multiple providers. It is a great middle ground for general home users.
Flexible Provider Support
Compatible with Xfinity and Cox, allowing users to switch ISPs without buying new hardware.
Efficient WiFi Management
The Nighthawk app provides control over devices, speed tests, and network security on the go.
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6. NETGEAR Nighthawk CM1150V – Premium Voice & Speed Choice
The NETGEAR Nighthawk CM1150V is a top-tier modem for Xfinity users needing both high-speed internet and reliable voice lines. It is engineered for DOCSIS 3.1, offering future-proofing and stability for modern household demands.
Pros
- High-speed DOCSIS 3.1
- Link aggregation for speed
- Full voice feature set
- Four Gigabit Ethernet ports
- Save rental fees
Cons
- Higher price point
- Xfinity compatibility only
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This modem supports plans up to 800 Mbps and includes two phone lines with features like caller ID and conference calling. It supports link aggregation to combine two 1G ports into a 2G connection, maximizing wired throughput.
The higher price tag reflects its premium features, but it saves on monthly rental fees over time. It requires a separate router and works exclusively with Xfinity, which limits its broader appeal.
If you want advanced speed options alongside robust voice capabilities, this is the ideal premium choice. It delivers excellent performance for power users.
Link Aggregation Technology
Combining Ethernet ports allows for faster wired connections, ideal for high-throughput devices.
Enhanced Call Features
Voice services are integrated seamlessly, offering standard features without extra monthly costs.
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7. NETGEAR CM3000 – Best Multi-Gig Modem
The NETGEAR CM3000 is a high-performance modem designed to unlock the fastest cable tiers available. It uses revolutionary mid/high-split technology to deliver speeds beyond standard cable modems, perfect for gigabit internet.
Pros
- Fastest DOCSIS 3.1 speeds
- Works with major ISPs
- Strong upload performance
- Stable low-latency connection
- Save up to $300/year
Cons
- No voice service support
- Requires separate router
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It supports providers like Xfinity, Cox, and Spectrum with download speeds up to 2.5Gbps and upload speeds up to 1Gbps. The modem features a 2.5Gbps Ethernet port and link aggregation for maximum wired connectivity.
Users should note it lacks voice support, making it unsuitable for landline users. However, for raw internet speed and reliability, it stands out as one of the best options on the market.
Choose this if you want the fastest possible wired connection and need a reliable modem for multiple providers. It is a top pick for speed enthusiasts.
Mid/High-Split Technology
This advanced tech unlocks upstream speeds that standard modems cannot achieve, improving overall network efficiency.
Multi-Gigabit Connectivity
Ethernet ports support link aggregation and high-speed plans, ensuring your wired devices run at full potential.
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8. NETGEAR C7100V – Best Combo Voice Option
The NETGEAR C7100V offers a convenient all-in-one solution for Xfinity subscribers needing voice, internet, and WiFi. It is well-rated for its ability to replace multiple devices while maintaining reliable service for home use.
Pros
- Combines modem, router, voice
- Supports Xfinity plans
- 2 voice ports included
- AC1900 WiFi speed
- Optional battery backup
Cons
- Xfinity only compatibility
- DOCSIS 3.0 limits
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This model supports plans up to 600 Mbps with an AC1900 router and includes two phone lines. It also offers optional battery backup for continued calls during power outages, a unique feature for this price point.
Users should note it is limited to Xfinity and uses older DOCSIS 3.0 technology. While suitable for many homes, it may not keep pace with future gigabit upgrades.
Pick this if you want a combined voice, modem, and router unit for Xfinity. It simplifies setup and offers practical features for everyday use.
Integrated Voice and Data
By combining voice and internet capabilities, this device simplifies your setup and reduces rental fees.
Backup Power Option
Optional battery backup ensures calls remain active during outages, adding reliability to home voice service.
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9. NETGEAR CM500V – Best Budget Voice Modem
The NETGEAR CM500V is a budget-friendly modem designed for Xfinity users who need basic internet and voice functionality. It is rated highly for affordability, making it accessible for those who want to avoid rental fees.
Pros
- Affordable pricing
- Xfinity Voice support
- Simple setup process
- Works with any router
- Good basic performance
Cons
- Limited to 300 Mbps
- Xfinity only
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This model supports plans up to 300 Mbps and includes two phone lines. It features 16×4 channel bonding for efficient access, works with any separate router, and keeps setup straightforward for average users.
While it lacks advanced features for faster plans, it provides reliable performance for typical households. It is limited to Xfinity and does not support the latest DOCSIS 3.1 speeds.
Choose this if you want a low-cost option for essential internet and voice needs. It is a practical pick for budget-conscious users.
Affordable Voice & Internet
At a low price point, this modem delivers core features without unnecessary extras or high costs.
Simple Network Setup
Works seamlessly with any separate router, allowing flexibility in expanding your home network.
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10. ARRIS SVG2482AC – Best Value Trio Device
The ARRIS SVG2482AC is an all-in-one device combining a modem, router, and telephony unit for Xfinity subscribers. It offers a practical way to handle internet and voice services while reducing equipment rental costs.
Pros
- Three-in-one functionality
- Affordable renewed unit
- Supports Xfinity voice
- Dual band WiFi included
- Multiple Ethernet ports
Cons
- Xfinity only service
- Renewed condition variance
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This model supports plans up to 600 Mbps and includes an AC1750 dual-band router. With four Gigabit Ethernet ports and Xfinity telephony, it provides essential connectivity for many home needs without extra devices.
As a renewed product, quality may vary slightly. Additionally, it is limited to Xfinity and older DOCSIS 3.0 standards, which restrict future-proofing capabilities.
Select this for a cost-effective solution to manage internet, voice, and WiFi in one unit. It is a solid choice for Xfinity households on a budget.
Unified Service Integration
Combines three critical functions into one box, reducing clutter and simplifying home network management.
Cost Savings
Using a renewed unit saves even more money while still providing reliable performance for standard Xfinity plans.
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Buying Guide – How to Choose the Best Cable Modem with Phone
Selecting the right cable modem with phone requires understanding compatibility, speed requirements, and specific provider features.
Provider Compatibility
Always confirm that the modem is certified by your specific provider. Many models work exclusively with Xfinity or other specific ISPs.
Check the provider's approved list to ensure activation will succeed without issues.
Voice Port Availability
Look for explicit support for telephone lines if you need landline service. Some modems only provide data ports.
Ensure the device supports the number of phone lines you require.
DOCSIS Version
DOCSIS 3.1 is faster and more future-proof than 3.0. It reduces latency and supports higher speed tiers.
Choose 3.1 for plans above 400 Mbps or for long-term stability.
Speed Support
Match the modem's speed capabilities to your subscribed plan. Using a slower modem than your plan allows wastes speed.
Check max speed ratings to avoid bottlenecks for your network.
Ethernet Ports
Consider how many wired connections you need. More Ethernet ports help with gaming consoles, PCs, or streaming boxes.
Look for link aggregation if you require combined bandwidth for heavy users.
WiFi Capabilities
Determine if you need a built-in router. Combo units simplify setup but modems-only offer more flexibility.
For large homes, separate routers may perform better than modem-router combinations.
Security Features
Look for built-in firewalls and encryption standards to protect your home network.
Regular firmware updates are essential to maintain protection against new threats.
Budget and Savings
Calculate how much you save by owning a modem versus renting. Rental fees can add up quickly over a year.
Choose a model that fits your budget while meeting your speed and voice needs.
How to Use and Care for Your Cable Modem with Phone
Connect the coaxial cable securely to the modem and plug it into power. Wait for the status lights to stabilize before connecting a router.
For voice services, ensure your phone lines connect to the correct ports labeled for telephony. Activation usually requires online registration.
Keep the modem in a well-ventilated area to prevent overheating. Regularly restart the device monthly to clear temporary issues.
Frequently Asked Questions
What is a cable modem with phone?
A cable modem with phone includes both data and voice ports. It allows you to access high-speed internet while maintaining traditional telephone service through the same device.
Are these modems compatible with all ISPs?
No. Most modems are certified for specific providers like Xfinity or Spectrum. Always check the approved list for your ISP before buying.
Do I need a separate router?
If your modem is a modem-only unit, yes. Combo units include a router. Separate routers allow more flexibility in WiFi range and features.
Can I keep my landline number?
Yes, if your provider supports porting. The modem enables voice service but your phone number remains tied to your account with the ISP.
Does owning a modem save money?
Yes. You avoid monthly rental fees that can total over $100 annually. The purchase cost is usually recovered within a few months.
Why use DOCSIS 3.1 over 3.0?
DOCSIS 3.1 offers faster speeds and better efficiency for high-bandwidth plans. It reduces latency and supports higher speed tiers than 3.0.
Final Thoughts on Choosing the Best Cable Modem with Phone
Choosing a cable modem with phone depends on your provider, speed needs, and budget. We highlighted top options like the NETGEAR Nighthawk CM2050V for high speeds and the CM500V for budget needs.
Prioritize DOCSIS 3.1 models for future-proofing and ensure voice features match your household requirements. A reliable modem saves money and improves your overall network stability.
Prices and availability change often. Always check current deals and compatibility before purchasing to ensure you get the best value for your home setup.