10 Best Cable Modem With Voice Line 2026 in the United States

The NETGEAR Nighthawk Multi-Gig Cable Modem (CM2050V) offers impressive features tailored for Xfinity customers. It supports cable plans up to 2.5Gbps, making it suitable for high-speed internet users. The modem is equipped with DOCSIS 3.1 and 32x8 channel bonding, ensuring robust and reliable internet performance. Additionally, it features a 2.5 Gigabit Ethernet port, allowing for ultra-fast wired connections.

Users needing voice services will appreciate the support for up to two telephone lines with enhanced call features such as caller ID and call forwarding. This modem can save you up to $168 per year by eliminating the need for equipment rental fees from your ISP. However, it is only compatible with Xfinity Voice plans and not with other providers like Verizon Fios or AT&T.

It does not have built-in Wi-Fi, so you'll need a separate Wi-Fi router. This might be a slight inconvenience for those looking for an all-in-one solution. Despite these limitations, its strong performance and extensive features make it a strong contender for Xfinity users seeking both high-speed internet and voice line capabilities.

The Motorola MT8733 is a solid choice for Xfinity internet and voice customers who want a combined modem, router, and voice line device. It uses the latest DOCSIS 3.1 standard, which supports fast and reliable cable internet up to 2.5 Gbps, making it suitable for heavy internet users, gamers, or households with multiple devices. It includes one 2.5 Gigabit Ethernet port and three 1 Gigabit ports, offering flexible wired connections. The built-in WiFi 6 (AX6000) delivers fast and stable wireless coverage, ideal for modern smart homes and gaming needs. Two phone ports support Xfinity voice lines with features like caller ID and call forwarding, but these phone features only work with Xfinity voice services—not other providers.

Setup is simplified via the Smart Motosync app, which also helps with network management and security. It lacks compatibility with non-Xfinity voice services, so it's not a good fit if you use a different phone provider. For Xfinity customers looking to save on rental fees and who want a future-proof, high-speed modem/router combo with voice line support, the MT8733 offers strong performance and convenience. Those with another ISP or requiring voice line flexibility beyond Xfinity will need to consider other options.

The ARRIS SURFboard SBV3202 is a cable modem designed especially for Xfinity Internet and Voice services. It uses DOCSIS 3.0 technology, which is common and reliable for delivering fast internet speeds, supporting plans up to 800 Mbps. This makes it a good fit if you want a solid internet connection without the latest DOCSIS 3.1 standard but still need decent speed for everyday use like streaming, browsing, and video calls. The modem has one Gigabit Ethernet port to connect your devices and two telephony ports if you want to use Xfinity’s voice service, making it convenient for combining internet and phone lines.

It’s easy to set up using the SURFboard app, and owning this device can save you rental fees from your cable provider, which adds up over time. However, it works only with Xfinity, so if you use a different ISP, this modem won’t be compatible. Also, it does not have built-in Wi-Fi, so you’ll need a separate router if you want wireless internet.

The device supports channel bonding but is limited compared to newer DOCSIS 3.1 modems, which might be better future-proof options if you want higher speeds or plan to upgrade your internet plan soon. This modem is a practical choice for Xfinity users looking for a cost-effective, combined internet and voice solution without extra features like Wi-Fi.