If you have Comcast Triple Play or Xfinity Voice, then you must buy an approved voice modem such as the ARRIS SVG2482AC or Netgear C7100v. The SURFboard or the Nighthawk, there is no way around buying a compatible voice modem if you have Xfinity Triple Play. Sure it may cost more up front but it will still save you money in the long run because you will no longer be paying the $10 a month rental fees. It will also provide you with the newer technology and more advanced higher performing wifi cable modem with built in wireless router. The good thing is both of these combo modem options are actually future proofed modem routers, meaning they can handle 1 gigabit download speeds. You also do not have to purchase a separate wireless router, you get both in one device. A high speed 24 downstream channel DOCSIS 3.0 EMTA voice modem, and a powerful wireless gateway for Comcast Xfinity Internet.
Approved Comcast Xfinity Voice Modem List
Required EMTA Modem for Comcast Voice / Xfinity Triple Play
What if I am not using the voice line? Do I still need a voice modem?
Yes, you do. I called Comcast myself and the bottom line is if you have Xfinity Triple Play– whether you use it or not– you need the voice modem. I have had readers also report that they tried and Comcast would not let them use a normal DOCSIS 3.0 approved non voice modem.
Is this my only option?
If you have Comcast Voice Triple Play, then yes. You must use one of the 2 telephony compatible voice modems. Your options are very limited but these are both brand new future proofed 1Gbps cable modems, meaning they are fast enough for the best internet speeds Comcast has to offer and they have a built in Wireless AC router. Which one would we recommend? The Netgear C7100V no doubt. See the differences below in the comparison chart.
Arris SVG2482AC vs Netgear C7100V Review
In any given situation I would pick the Netgear C7100V over the Arris SVG2482AC because it is a faster combo modem / router, it has built in USB ports for network storage, and the battle tested Netgear GUI and firmware. Yes, the ARRIS SVG2482AC voice modem may have two physical USB ports on the back of the modem, but they are not for your use. They are for service technicians and will not host an external hard drive or printer. The firmware just isn’t supporting it. I consider this a huge flaw. They make no claims of the device even having USB ports in any of their marketing, yet you can see they are there for service techs. This is the sole reason why I would get the Netgear C7100V. I love my network storage and back up. Rest easy, never lose a photo or document.
The USB ports are not the only enhancement with the Netgear C7100V. As you can see it has a slightly higher wireless throughput, which may be pretty unnoticeable if at all noticeable so do not let your decision ride on that. If you’ve ever owned a Netgear Nighthawk router before, you’ll be familiar with the Nighthawk built in software and I do prefer it over Arris’s GUI. That’s pretty much the general consensus with most people in tech. So when it comes down to the higher cost you have to ask yourself, do you need USB ports, want a better GUI / firmware and care about a small speed increase that you can’t even notice unless you’re transferring large files over your local network? For me, the answer is yes.
TM822R Comcast Voice Modem
You’ll note that this modem is a lot cheaper. That is because it is older and it is NOT a combo modem and it does not have built in wifi like the other two options. This is the modem you would get if you already have your own router and do not need the gateway option. This is the only standalone voice only modem. The problem is that it is older, it is only 8×4 bonded download and upload channels while all the new standards are at 24 download channels. This is OK for now, it will handle the current high tiers but not future 1Gigabit speeds. I do not know if Comcast will start dropping service for older lower downstream channels modems or not, but it is not impossible. So if you have voice, you are forced into this. I do not know why they do not maintain better quality new modems for the EMTA only devices.
|ARRIS vs Netgear:||SVG2482AC||C7100V||TM822R|
|Wireless AC:||AC1750||AC1900||No WiFi|
|USB Ports:||None||(2) USB||None|
|Sources: Comcast | Arris | Netgear|