NETGEAR Cable Modem with Voice CM500V
4.2Editor score
Affordable entry level modem option
Certified for Xfinity Internet Voice
Includes two phone lines support
In this guide
Finding a reliable cable modem with phone support is essential for households that depend on both high speed internet and clear voice communication. These devices combine data connectivity with telephony features, allowing you to manage your home network and phone lines through a single trusted piece of hardware.
We evaluated ten leading models based on their compatibility with major providers, voice port capabilities, and overall network performance. Each product was assessed for its ability to handle modern internet speeds while maintaining stable phone service during peak usage times across different home environments.
Each pick in this list highlights key strengths such as speed support, channel bonding, and ease of setup. Keep in mind that prices and availability can change frequently, so verify current details with the retailer before making your final purchase decision for your home network setup.
Top 3 Picks for Best Cable Modem with Phone
NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice
4.0Editor score
Supports up to 2.5Gbps speeds
Compatible with Xfinity Voice service
Features two telephone lines for calls
ARRIS Surfboard DOCSIS 3.0 Cable Modem Plus
4.0Editor score
Combines modem router and telephone
Supports plans up to 600Mbps
Dual band Wi-Fi connectivity included
Top 10 Best Cable Modem with Phone in 2026 Compared
The following comparison table presents a side-by-side overview of all ten selected cable modems with phone support, highlighting their key specifications and compatibility details to help you make an informed decision.
ProductsSpecificationsEditor scorePrice
Editor's Choice
NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice
DOCSIS 3.1 technology
Up to 2.5Gbps speeds
Two telephone line support
Xfinity Internet and Voice
4.0Editor score
Editor's Choice
NETGEAR Nighthawk Modem Router Combo CAX30
WiFi 6 AX2700
DOCSIS 3.1 modem
Supports Xfinity Spectrum Cox
Up to 1Gbps plans
4.1Editor score
Best Premium
Motorola MT7711 Cable Modem-Two Phone Ports Router
AC1900 Dual Band Wi-Fi
DOCSIS 3.0 modem
Two XFINITY Voice ports
Up to 400 Mbps plans
4.0Editor score
ARRIS T25 Cable Modem
DOCSIS 3.1 technology
Up to 800 Mbps speed
Xfinity Internet Voice Service
Two 1 Gbps ports
4.1Editor score
NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo C7000
AC1900 WiFi 5 speed
DOCSIS 3.0 modem
Up to 800Mbps plans
Gigabit Ethernet ports
4.2Editor score
NETGEAR Nighthawk Cable Modem with Voice CM1150V
DOCSIS 3.1 technology
Up to 800Mbps speed
Two telephone lines support
Link aggregation ports
4.1Editor score
NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem
DOCSIS 3.1 modem
Up to 2.5Gbps download
Xfinity Cox Spectrum support
Multi-gig Ethernet ports
4.3Editor score
NETGEAR Nighthawk Cable Modem WiFi Router Combo with Voice C7100V
AC1900 WiFi speed
DOCSIS 3.0 modem
Up to 600Mbps plans
Two VoIP ports
4.2Editor score
NETGEAR Cable Modem with Voice CM500V
DOCSIS 3.0 technology
Up to 300 Mbps speed
Two telephone lines support
Certified for Xfinity
4.2Editor score
ARRIS Surfboard DOCSIS 3.0 Cable Modem Plus AC1750 Dual Band Wi-Fi Router
DOCSIS 3.0 modem
AC1750 Dual Band Wi-Fi
Up to 600 Mbps plans
Xfinity Telephone included
4.0Editor score
1. NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice – Best Overall Cable Modem with Phone
NETGEAR Nighthawk Multi-Gig Cable Modem for Xfinity Voice
DOCSIS 3.1 tech
Up to 2.5Gbps
Two phone lines
2.5Gbps Ethernet
This NETGEAR Nighthawk multi-gig cable modem stands out as a top choice for users needing high speed internet alongside reliable phone service. With a solid rating and robust features it delivers the performance required for modern households relying on VoIP or traditional voice lines through the modem.
Pros
- Supports fastest cable plans
- Certified for Xfinity Voice
- Future proof DOCSIS 3.1
- Multi-gig Ethernet port
- Stable performance
Cons
- Higher price point
- No built-in WiFi
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The standout quality lies in its support for cable plans up to 2.5Gbps, ensuring you get the most from your connection. It is certified by Xfinity for both internet and voice, which means compatibility is guaranteed for users on Triple Play plans without risking service disruptions.
While it commands a higher price, the investment protects against future speed upgrades and reduces monthly rental fees over time. The lack of built-in WiFi requires a separate router but also gives you flexibility to choose the best networking gear for your specific coverage needs.
Anyone with Xfinity internet and voice services who wants maximum speed should consider this modem first. Its multi-gig ethernet port and future proof DOCSIS 3.1 technology make it a strong recommendation for those planning to stay on the same provider for years.
Speed and Compatibility
The DOCSIS 3.1 technology ensures this modem supports the fastest cable internet tiers available today while maintaining compatibility with Xfinity voice service.
Voice Line Support
Users can connect up to two telephone lines with enhanced features like caller ID and conference calling directly through the modem hardware.
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2. NETGEAR Nighthawk Modem Router Combo CAX30 – Best All in One Solution
NETGEAR Nighthawk Modem Router Combo CAX30
WiFi 6 AX2700
DOCSIS 3.1 modem
Up to 1Gbps plans
Whole home coverage
This combo unit combines a high performance cable modem with a WiFi 6 router into a single device for streamlined home networking. It earns a strong rating for its ability to handle fast internet speeds and provide wide coverage for all connected devices.
Pros
- Combines modem and router
- WiFi 6 technology
- Supports multiple ISPs
- Easy app management
- Secure network features
Cons
- No voice port support
- Higher cost than modem only
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The device supports major providers like Xfinity Spectrum and Cox for internet plans up to 1Gbps. It includes robust security features and an intuitive app that helps users manage their network and optimize performance without needing advanced technical knowledge.
Keep in mind that this specific model does not support voice or phone lines, so it is best suited for internet only plans. If you need a phone port you would need to choose a different variant or use a separate device for voice service.
For households prioritizing fast wireless coverage and internet performance without the need for landline phone support this combo offers excellent value. It simplifies setup and reduces clutter by eliminating the need for two separate boxes.
WiFi Performance
With AX2700 WiFi 6 capabilities this router covers up to 2000 sq ft and handles over 25 connected devices simultaneously with minimal lag.
Provider Support
It is approved for internet plans from major US providers ensuring compatibility with most cable networks without requiring complex activation steps.
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3. Motorola MT7711 Cable Modem-Two Phone Ports Router – Best for Xfinity Users
Motorola MT7711 Cable Modem-Two Phone Ports Router
DOCSIS 3.0 modem
AC1900 Dual Band Wi-Fi
Two XFINITY Voice ports
Up to 400 Mbps
The Motorola MT7711 is a versatile three in one device that integrates a cable modem router and voice ports for Xfinity users. It receives high praise for its ability to replace rented equipment while supporting both internet and phone service effectively.
Pros
- Three in one device
- Two phone ports included
- Strong wireless range
- Certified for Xfinity
- Good value for money
Cons
- DOCSIS 3.0 not 3.1
- Renewed condition possible
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Its AC1900 dual band Wi-Fi delivers reliable speeds for streaming and gaming, and the built-in power boost extends range throughout larger homes. With two voice ports you can connect two telephone lines with standard features like caller ID and conference calling.
This unit is limited to Comcast Xfinity internet and voice services, so it will not work with other providers or DSL networks. While it uses the older DOCSIS 3.0 standard it still supports speeds up to 400 Mbps which covers many common household plans.
Households with Xfinity service looking to save on rental fees will find this modem router combo an attractive option. It offers a convenient all-in-one solution that simplifies cabling while maintaining reliable connectivity for both data and voice needs.
Integration Benefits
Having the modem router and voice ports in one device reduces cable clutter and simplifies setup for users who want a clean home office space.
Wireless Coverage
Beamforming technology focuses signals on connected devices improving performance and range even when devices are far from the main router unit.
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4. ARRIS T25 Cable Modem – Best Value DOCSIS 3.1 Option
ARRIS T25 Cable Modem
DOCSIS 3.1 modem
Up to 800 Mbps
Xfinity Voice service
Two 1 Gbps ports
This ARRIS T25 modem brings next generation DOCSIS 3.1 technology to users who want faster internet and reliable voice service without paying high rental fees. It is recognized for its straightforward setup and solid performance on Xfinity plans up to 800 Mbps.
Pros
- New DOCSIS 3.1 tech
- Compatible with Xfinity Voice
- Simple setup process
- Gigabit Ethernet ports
- Affordable upgrade path
Cons
- No built-in router
- Voice only on Xfinity
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The device includes two gigabit Ethernet ports and supports Xfinity Voice with two telephone lines allowing you to keep your home phone service active. Security is enhanced through the latest DOCSIS 3.1 features which reduce lag and improve data protection compared to older standards.
It is a modem only device meaning you will need to connect a separate router to get wireless internet throughout your home. This might add a step to setup but allows you to choose a router with features that fit your specific needs.
If you are on Xfinity and want to upgrade to DOCSIS 3.1 for better performance this modem is a smart choice. It offers a balance of modern technology and affordability that suits many households looking to own their equipment.
Setup Ease
Users can activate the modem quickly using the SURFboard Central App which guides you through the connection and provisioning process step by step.
Future Proofing
With DOCSIS 3.1 you are prepared for future speed increases without needing to replace the modem again for several years.
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5. NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo C7000 – Best Combo for Speed
NETGEAR Nighthawk Cable Modem and WiFi 5 Router Combo C7000
AC1900 WiFi 5
DOCSIS 3.0 modem
Up to 800Mbps
Gigabit Ethernet ports
This NETGEAR Nighthawk combo delivers fast internet speeds and strong wireless performance in a single device that supports plans up to 800Mbps. It is highly rated for its ability to streamline home networking while providing reliable connectivity for streaming and gaming.
Pros
- Combines modem and router
- AC1900 speed ratings
- Works with Xfinity Cox
- USB port included
- Easy app management
Cons
- No voice port support
- DOCSIS 3.0 not 3.1
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The AC1900 dual band Wi-Fi ensures stable speeds across both 2.4GHz and 5GHz bands which helps reduce congestion during peak hours. You get multiple gigabit Ethernet ports for wired devices and a USB port to share storage or printers across the network.
Note that this model does not support voice services, so it is only suitable for internet plans without phone lines. While it uses the older DOCSIS 3.0 standard it still provides ample speed for most households looking to save on rental costs.
Families who want a simple all in one solution for internet without phone lines will find this combo a solid investment. It offers a good balance of performance and convenience without the complexity of managing separate modem and router units.
Wireless Performance
Beamforming+ technology boosts range and reduces dead spots ensuring devices stay connected even at the edges of your home.
Network Management
The Nighthawk app allows you to pause internet access for specific devices and run speed tests directly from your smartphone.
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6. NETGEAR Nighthawk Cable Modem with Voice CM1150V – Best DOCSIS 3.1 Voice Modem
NETGEAR Nighthawk Cable Modem with Voice CM1150V
DOCSIS 3.1 modem
Up to 800Mbps speed
Two telephone lines
4x Gigabit ports
The NETGEAR CM1150V is a robust cable modem that supports both high speed internet and voice service with DOCSIS 3.1 technology. It is known for its reliability and compatibility with Xfinity plans up to 800Mbps, making it a strong choice for households that need phone lines.
Pros
- DOCSIS 3.1 technology
- Two phone lines
- Certified for Xfinity
- Link aggregation support
- Gigabit Ethernet
Cons
- Expensive for modem only
- No built-in WiFi
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With four gigabit Ethernet ports and link aggregation support you can get fast wired connections and even combine ports for higher throughput. The two phone lines support enhanced features like caller ID and conference calling, ensuring a clear and functional voice service.
It is a dedicated modem without built-in WiFi so you will need to pair it with a separate router for wireless coverage. This separation can be beneficial if you want to use a higher end router that meets your specific range and speed requirements.
For Xfinity users who prioritize voice service and want future proof DOCSIS 3.1 performance this modem is highly recommended. It eliminates rental fees and provides a stable foundation for both data and telephony in your home network.
Wired Connectivity
Link aggregation allows combining two 1G ports to achieve 2Gbps speeds on single devices that support it for advanced users.
Voice Features
The integrated phone ports work seamlessly with Xfinity Voice providing reliable connectivity for home phone use without extra equipment.
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7. NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem – Best for Speed
NETGEAR Nighthawk CM3000 DOCSIS 3.1 Cable Modem
DOCSIS 3.1 modem
Up to 2.5Gbps
Xfinity Cox Spectrum
Multi-gig ports
The CM3000 is designed for users who want the fastest possible cable speeds available with mid/high-split technology delivering up to 2.5Gbps. It earns a high rating for its performance stability and ability to work with major providers like Xfinity Cox and Spectrum.
Pros
- Fastest DOCSIS 3.1
- Mid/high-split technology
- Supports major ISPs
- Stable performance
- Link aggregation ports
Cons
- No voice ports
- High price point
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With one 2.5Gbps Ethernet port and two 1Gbps ports you can connect high speed devices directly for maximum throughput. It also features link aggregation to combine ports for even faster wired speeds which is ideal for power users and large file transfers.
This model does not include voice support so it is only suitable for internet only plans. You will need to pair it with a separate router and voice system if you rely on landline phones for home communication.
If your priority is maximum download speed and network stability this modem offers the best performance in its class. It is a solid investment for those with high tier plans who want to avoid bottlenecks in their home network setup.
Speed Potential
The mid/high-split technology unlocks the fastest tiers from providers ensuring you get the most out of your cable connection.
ISP Compatibility
It works with the major US cable providers ensuring you can use it with Xfinity Cox or Spectrum without activation issues.
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8. NETGEAR Nighthawk Cable Modem WiFi Router Combo with Voice C7100V – Best All in One Voice Combo
NETGEAR Nighthawk Cable Modem WiFi Router Combo with Voice C7100V
AC1900 WiFi speed
DOCSIS 3.0 modem
Up to 600Mbps
Two VoIP ports
This three in one device combines a cable modem WiFi router and voice ports making it a convenient choice for Xfinity households. It is highly rated for delivering both internet and phone service without requiring separate hardware for each function.
Pros
- Modem router and voice
- Two phone lines
- Supports Xfinity plans
- AC1900 performance
- USB ports included
Cons
- No DOCSIS 3.1
- No battery backup
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The AC1900 Wi-Fi provides reliable speeds for streaming and gaming while the two VoIP ports support home phone lines with standard features. It works with Xfinity cable and voice plans up to 600Mbps ensuring compatibility with common service tiers.
One limitation is that it relies on DOCSIS 3.0 which may not support the fastest upcoming internet upgrades. You may also need to purchase an optional battery backup if you want phone service during power outages.
Families looking for an all in one solution that handles internet and voice together will appreciate the simplicity of this device. It reduces equipment clutter and simplifies setup making it a strong option for those on compatible Xfinity plans.
Convenience
Having internet routing and voice in one box reduces cables and makes setup easier for those who want a clean home setup.
Performance
The AC1900 Wi-Fi ensures stable speeds for streaming and gaming which is suitable for most households without extreme bandwidth needs.
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9. NETGEAR Cable Modem with Voice CM500V – Best Affordable Voice Modem
NETGEAR Cable Modem with Voice CM500V
DOCSIS 3.0 modem
Up to 300 Mbps
Two telephone lines
Certified for Xfinity
The CM500V is an affordable modem that supports both internet and voice services for Xfinity users. It is widely praised for its low price and reliable performance on plans up to 300 Mbps, making it accessible for many households.
Pros
- Budget friendly option
- Includes voice support
- Certified for Xfinity
- Easy setup
- Gigabit Ethernet
Cons
- Lower speed capacity
- No built-in WiFi
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It includes two telephone lines with standard calling features and connects to a separate router to provide wireless internet across your home. The gigabit Ethernet port ensures stable wired connections for computers and gaming consoles.
This device uses DOCSIS 3.0 which limits it to lower speed tiers compared to newer modems. If you plan to upgrade to faster internet in the near future you may need to replace this modem sooner than expected.
Budget conscious buyers who need voice support will find this modem a practical choice. It offers a straightforward way to own your equipment and save on rental fees while maintaining essential internet and phone functionality.
Affordability
This modem is one of the most cost effective options for Xfinity users looking to own their equipment without sacrificing voice support.
Compatibility
It is certified by Comcast for Xfinity ensuring smooth activation and reliable service when used with their internet and voice plans.
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10. ARRIS Surfboard DOCSIS 3.0 Cable Modem Plus AC1750 Dual Band Wi-Fi Router – Best Budget Combo
ARRIS Surfboard DOCSIS 3.0 Cable Modem Plus AC1750 Dual Band Wi-Fi Router
DOCSIS 3.0 modem
AC1750 Wi-Fi
Up to 600 Mbps
Xfinity Telephone
This Surfboard device combines a cable modem Wi-Fi router and telephone service into a single unit for Xfinity households. It is recognized for its convenience and ability to handle internet and voice without requiring multiple pieces of hardware.
Pros
- All in one device
- Includes voice support
- Dual band Wi-Fi
- Certified for Xfinity
- Affordable choice
Cons
- No security service
- Limited to Xfinity
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The AC1750 dual band Wi-Fi provides decent wireless speeds for streaming and browsing while the integrated telephone service keeps home phones connected. It supports plans up to 600 Mbps which fits many common household needs effectively.
It does not support home security services unless paired with an Xfinity home router which limits some functionality for advanced users. Being a renewed product means you may find it at a lower price but with potential wear compared to new units.
Households on Xfinity internet and voice plans looking for a simple budget friendly solution will find this combo appealing. It simplifies setup and reduces monthly rental costs making it a practical choice for basic home connectivity needs.
Convenience
This device eliminates the need for separate modem and voice units simplifying setup and reducing clutter in your home office or living room.
Wireless
Dual band Wi-Fi supports multiple devices and provides reliable connectivity for streaming and browsing throughout your home.
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Buying Guide – How to Choose the Best Cable Modem with Phone
Selecting the right cable modem with phone support involves considering several technical factors that ensure compatibility and performance for your specific needs.
Provider Compatibility
Different modems work with specific internet service providers. Ensure the device is certified for your ISP such as Xfinity Spectrum or Cox to avoid activation issues.
Always check the compatibility list before buying to confirm it supports both your internet and voice service needs.
DOCSIS Standard
DOCSIS 3.1 modems offer faster speeds and better efficiency than older DOCSIS 3.0 models. If you have a high tier plan opt for a 3.1 device to maximize performance.
DOCSIS 3.0 modems work well for standard plans but may not support future speed upgrades without replacement.
Phone Line Support
Check how many telephone lines the modem supports. Most models offer two lines which is enough for a small family or home office setup.
Look for features like caller ID and call forwarding if you rely on voice services for communication.
Internet Speed Capacity
Match the modem speed rating to your internet plan. A modem rated for 300 Mbps will not fully utilize a 1Gbps plan so choose one with enough headroom.
Higher speed capacity ensures you get the most out of your monthly service fee without throttling performance.
Ethernet Ports
Multiple gigabit Ethernet ports allow you to connect devices like gaming consoles or desktops directly. Some models offer link aggregation for even faster wired speeds.
More ports provide greater flexibility for wired connections without needing extra switches or hubs.
Modem Only vs Combo
Modem only devices require a separate router but give you more control over your network. Combo units combine functions which can save space and simplify setup.
Choose a combo if you prefer convenience or separate components if you need advanced router features like mesh support.
Future Proofing
Investing in a newer modem technology can extend the device life before upgrades are needed. DOCSIS 3.1 is currently the standard for future proofing.
Higher performance devices reduce the frequency of replacements and help avoid fees over time.
Rental Savings
Buying your own modem can save significant money over time by eliminating monthly rental fees. The initial cost is usually recovered within a year of ownership.
Calculate the total cost of ownership to confirm that purchasing saves money compared to renting from your provider.
How to Use and Care for Your Cable Modem with Phone
Connect the coaxial cable from the wall outlet to the modem securely ensuring a tight fit to avoid signal loss. Then plug the power cord into an outlet and wait for the indicator lights to stabilize before proceeding to setup.
For voice service connect your telephone handsets to the phone ports labeled on the modem using standard phone cables. Ensure the phone line lights show active status once configured to confirm service is operational.
Keep the modem in a well ventilated space away from heat sources to prevent overheating. Regularly restart the device every few weeks to clear temporary glitches and maintain optimal performance.
Frequently Asked Questions
Do I need a router if I have a cable modem with phone?
Most modems with phone support do not include built-in WiFi so you will need a separate router for wireless internet. Some models combine both functions but it is important to check the specifications before purchasing to ensure it meets your networking needs.
Can I use a cable modem with phone on any internet provider?
No these modems are often certified for specific providers like Xfinity or Cox. Using a modem not approved by your ISP may result in activation issues or reduced performance so always verify compatibility before buying.
What happens to my phone service during a power outage?
During a power outage your phone service may stop unless you have a backup battery. Some providers offer battery backup units that allow phone calls to continue for a limited time during outages.
How many telephone lines can I connect to a cable modem?
Most cable modems with phone support include two telephone ports which allows you to connect two separate phone lines. This is usually sufficient for typical home use and small office setups.
Does buying my own modem save money?
Yes owning your modem eliminates monthly rental fees which can add up to over $100 per year. The upfront cost is typically recovered within the first year of ownership.
Can I upgrade my internet speed without changing the modem?
It depends on the modem capabilities. A DOCSIS 3.0 modem may not support speeds above 400 Mbps so you might need to upgrade to a DOCSIS 3.1 device for faster plans.
What is the difference between DOCSIS 3.0 and 3.1?
DOCSIS 3.1 offers faster speeds better efficiency and improved security features compared to 3.0. It supports higher bandwidth plans and is more future proof for upcoming internet upgrades.
Final Thoughts on Choosing the Best Cable Modem with Phone
Choosing the right cable modem with phone support depends on your provider internet speed needs and whether you prefer an all-in-one solution or separate components. The top picks offer a range of options from budget friendly to high performance devices.
Prioritize DOCSIS 3.1 compatibility and provider certification to ensure reliable service and future proofing. Consider whether you need multiple phone lines or high speed wired connections when selecting your device.
Keep in mind that prices and availability can change frequently so verify current details with the retailer before making your final purchase decision for your home network setup.