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4 Best Cable Modem With Voice Line 2025 in the United States

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Our Top Picks

#1

Winner

ARRIS (T25) - Cable Modem - Fast DOCSIS 3.1 Gigabit Cable Modem , Comcast Xfinity Internet & Voice , Two 1 Gbps Ports, 800 Mbps Max with Xfinity Plan

Rating
9.9
Chosen by1,130
DOCSIS Standard
Voice Line Support
Speed Rating

Most important from
1736 reviews

DOCSIS Standard
Some users experienced significant issues with the modem, including call dropouts and Wi-Fi connectivity problems, possibly due to the Puma chipset.
Voice Line Support
Telephone line functionality has been flawless, making it an excellent choice for Xfinity Voice users.
Speed Rating
The modem has consistently delivered performance improvements, with internet download speeds increasing from 600Mbps to 900Mbps.
Wi-Fi Capability
Some users experienced significant issues with the modem, including call dropouts and Wi-Fi connectivity problems, possibly due to the Puma chipset.

The ARRIS T25 Cable Modem is a solid choice for users of Comcast Xfinity Internet and Voice services. One of its biggest strengths is its adoption of DOCSIS 3.1 technology, which is significantly faster and more secure than the previous DOCSIS 3.0 standard. This modem supports high-speed internet plans up to 800 Mbps, making it suitable for demanding activities like gaming and streaming. Additionally, it features two 1 Gbps Ethernet ports, which can be beneficial for wired connections that require stable and fast internet speeds.

By owning the modem, users can save up to $168 annually in rental fees, which is a great cost-saving advantage. The setup process is straightforward, involving plugging in the device and using the SURFboard Central App for activation. However, it's important to note that the ARRIS T25 does not include Wi-Fi capabilities, necessitating a separate Wi-Fi router if wireless connectivity is required. Furthermore, it is only compatible with Xfinity services, limiting its use if you switch internet providers. In terms of physical design, the modem is relatively compact and lightweight, with dimensions of 2.68 inches in length, 7.17 inches in width, and 10.55 inches in height.

The ARRIS T25 is highly praised, with a customer rating of 4.1 out of 5 stars from 1,724 reviews. In summary, this modem is ideal for Xfinity users needing both internet and voice capabilities and looking for a reliable, high-speed, wired connection.

Rating
9.9
Chosen by1,130
DOCSIS Standard
Voice Line Support
Speed Rating

Most important from
1736 reviews

DOCSIS Standard
Some users experienced significant issues with the modem, including call dropouts and Wi-Fi connectivity problems, possibly due to the Puma chipset.
Voice Line Support
Telephone line functionality has been flawless, making it an excellent choice for Xfinity Voice users.
Speed Rating
The modem has consistently delivered performance improvements, with internet download speeds increasing from 600Mbps to 900Mbps.
Wi-Fi Capability
Some users experienced significant issues with the modem, including call dropouts and Wi-Fi connectivity problems, possibly due to the Puma chipset.
#2

Motorola MT7711 24X8 Cable Modem/Router with Two Phone Ports, DOCSIS 3.0 Modem, and AC1900 Dual Band WiFi Gigabit Router, for Comcast XFINITY Internet and Voice

Rating
9.8
Voice Line Support
ISP Compatibility
Ethernet Ports

Most important from
6008 reviews

Voice Line Support
Voice line activation can be challenging and may require assistance from Comcast support, but persistent tech support usually resolves issues.
ISP Compatibility
The modem/router setup was straightforward, and users appreciated the immediate connectivity without needing to call Comcast for internet activation.
Ethernet Ports
Connecting the Motorola couldn't be easier, especially with an Ethernet cable; setup is quick and intuitive.
Wi-Fi Capability
WiFi performance is excellent, with download speeds on the 5GHz channel around 20% faster than the Arris gateway.

The Motorola MT7711 is a versatile device combining a cable modem, gigabit router, and voice line support, specifically designed for Comcast XFINITY users. It supports the DOCSIS 3.0 standard, ensuring good internet speeds and reliability. With 24x8 channel bonding, it can handle high-speed internet up to 400 Mbps, suitable for most household needs. The inclusion of two phone ports makes it a valuable option for users who need voice service compatibility.

Additionally, it offers AC1900 dual-band Wi-Fi, which provides robust wireless connectivity across both 2.4GHz and 5GHz frequencies, ensuring good coverage and speed for multiple connected devices. The product includes four gigabit Ethernet ports for wired connections, enhancing its versatility for different devices. One major advantage is the potential savings on rental fees, as owning this device can eliminate up to $156 per year in costs.

However, it's important to note that this modem/router is exclusively compatible with Comcast XFINITY services, limiting its use for customers of other ISPs. Another downside is the lack of a backup battery, which means phone calls cannot be made during power outages unless separately purchased. At 3.56 pounds with dimensions of 8.25 x 2.25 x 9 inches, it is reasonably compact and easy to set up. The MT7711 is a strong contender for XFINITY users seeking a comprehensive solution for internet and voice services.

Rating
9.8
Voice Line Support
ISP Compatibility
Ethernet Ports

Most important from
6008 reviews

Voice Line Support
Voice line activation can be challenging and may require assistance from Comcast support, but persistent tech support usually resolves issues.
ISP Compatibility
The modem/router setup was straightforward, and users appreciated the immediate connectivity without needing to call Comcast for internet activation.
Ethernet Ports
Connecting the Motorola couldn't be easier, especially with an Ethernet cable; setup is quick and intuitive.
Wi-Fi Capability
WiFi performance is excellent, with download speeds on the 5GHz channel around 20% faster than the Arris gateway.
#3

ARRIS SURFboard SVG2482AC DOCSIS 3.0 Cable Modem & AC2350 Wi-Fi Router , Comcast Xfinity Internet & Voice , Four 1 Gbps Ports , 2 Telephony Ports for Digital Voice , Up to 800 Mbps

Rating
9.6
Voice Line Support
ISP Compatibility
Speed Rating

Most important from
4846 reviews

Voice Line Support
One of the fastest cable modems compatible with Xfinity's VOIP landline telephone service.
ISP Compatibility
Great option for saving on rental fees from the ISP.
Speed Rating
Solid performance with all advertised speeds once correctly connected.

The ARRIS SURFboard SVG2482AC is a cable modem and Wi-Fi router combo that supports DOCSIS 3.0, making it suitable for high-speed internet up to 800 Mbps. It's an excellent choice for homes using Comcast Xfinity Internet & Voice services, with two telephony ports for digital voice.

This device stands out for its dual-band Wi-Fi capability, which means it can handle multiple devices efficiently, offering good coverage and fast internet speeds throughout the home. With four 1 Gbps Ethernet ports, it's well-equipped for wired connections to PCs or gaming consoles. Additionally, the AC2350 Wi-Fi standard ensures reliable wireless connections for various devices, including smart TVs and personal computers.

Setting up the device is straightforward and can be managed using the SURFboard Central App, which also provides features like real-time network monitoring and parental controls. However, this device is limited to DOCSIS 3.0, whereas some newer models support DOCSIS 3.1, which offers better performance and future-proofing. Its compatibility is limited to Xfinity services, so it wouldn't be the right choice if you use a different ISP. For Xfinity users, it is a robust option that combines modem and router functionalities, potentially saving you on rental fees.

Rating
9.6
Voice Line Support
ISP Compatibility
Speed Rating

Most important from
4846 reviews

Voice Line Support
One of the fastest cable modems compatible with Xfinity's VOIP landline telephone service.
ISP Compatibility
Great option for saving on rental fees from the ISP.
Speed Rating
Solid performance with all advertised speeds once correctly connected.

Buying Guide for the Best Cable Modem With Voice Line

Choosing the right cable modem with a voice line can significantly impact your internet and phone service experience. It's essential to understand the key specifications to ensure you get a device that meets your needs. This guide will help you navigate through the important features and make an informed decision.
DOCSIS StandardDOCSIS (Data Over Cable Service Interface Specification) is a standard that defines how data is transmitted over cable networks. The most common versions are DOCSIS 3.0 and DOCSIS 3.1. DOCSIS 3.1 offers faster speeds and better performance, making it ideal for high-speed internet plans and future-proofing your setup. If you have a basic internet plan, DOCSIS 3.0 might be sufficient, but for higher speeds and more reliable performance, DOCSIS 3.1 is recommended.
Channel BondingChannel bonding refers to the number of downstream and upstream channels a modem can use simultaneously. More channels mean higher potential speeds and better performance during peak usage times. Typically, modems with 16x4 or 24x8 channel bonding are suitable for moderate internet usage, while 32x8 or higher is better for heavy usage, such as streaming, gaming, and multiple devices. Consider your internet usage habits to determine the right channel bonding for you.
Voice Line SupportVoice line support allows you to connect your home phone service through the modem. This feature is essential if you plan to use your cable provider's phone service. Ensure the modem has the necessary ports and compatibility with your provider's voice service. If you rely on a landline for communication, this feature is crucial. Otherwise, it might not be necessary if you primarily use mobile phones.
ISP CompatibilityNot all modems are compatible with every Internet Service Provider (ISP). It's important to check if the modem you are considering is approved by your ISP. This ensures that you can easily set up and use the modem without any issues. Most ISPs provide a list of compatible modems on their website. Make sure to verify compatibility to avoid any inconvenience.
Speed RatingThe speed rating of a modem indicates the maximum internet speed it can handle. This is usually expressed in Mbps (megabits per second). Choose a modem with a speed rating that matches or exceeds your internet plan to ensure optimal performance. For example, if you have a 300 Mbps plan, a modem rated for at least 300 Mbps is necessary. Higher speed ratings are beneficial if you plan to upgrade your internet plan in the future.
Ethernet PortsEthernet ports allow you to connect wired devices directly to the modem for a stable and fast internet connection. The number of ports can vary, with some modems offering 2 or more. If you have multiple devices that require a wired connection, such as desktop computers or gaming consoles, ensure the modem has enough Ethernet ports to accommodate them. This is less critical if you primarily use Wi-Fi.
Wi-Fi CapabilitySome cable modems come with built-in Wi-Fi routers, while others require a separate router. Built-in Wi-Fi can simplify setup and reduce clutter, but separate routers often offer better performance and more features. If you prefer an all-in-one solution, look for a modem with strong Wi-Fi capabilities. If you need advanced features or better coverage, consider using a separate high-quality router.

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