If you have Comcast Triple Play or Xfinity Voice, then you must buy an approved compatible voice modem with a phone jack such as the ARRIS SVG2482AC, Motorola MT7711 or Netgear C7100v Nighthawk. We’ll also cover the Netgear CM1150V and CM500v if you have your own router but we’ll expand on the subject more below.
If you have Xfinity Triple Play, there is no way around buying a compatible voice modem. Sure it may cost more upfront, 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 a phone jack and a built-in wireless router.
The good thing is, the highly-rated Netgear C7100v is a combo modem router, meaning you 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 Triple Play Internet. It is far superior to the ARRIS SVG2482AC, but we have a much cheaper option below.
First, the cheat sheet. A full chart containing all of the important factors for choosing a voice modem designed specifically to work with your Xfinity Triple Play package.
| Model # | C7100V | MT7711 | SVG2482AC | CM500v | CM1150v |
|---|---|---|---|---|---|
| Chip Set | Broadcom | Broadcom | Puma 6 | Broadcom | Broadcom |
| Modem & Router | Yes | Yes | Yes | No | No |
| Phone Jack | Yes | Yes | Yes | Yes | Yes |
| Download Channels | 24 | 24 | 24 | 16 | 32 |
| Upload Channels | 8 | 8 | 8 | 4 | 8 |
| Max Download | 500Mbps | 650Mbps | 500Mbps | 200Mbps | 1Gbps |
| Wireless AC | AC1900 | AC1900 | AC1750 | No WiFi | No WiFi |
| USB Ports | (2) USB | None | None | None | None |
| Amazon Price | Price  | Price | Price | Price | Price |
Xfinity Voice Modem with Router Combo
Voice Modem and WiFi Router in One
Netgear C7100V: Top Combo Voice Choice. Amazon
Motorola MT7711: Clear 2nd Choice and much cheaper. Amazon
Arris SVG2482AC: Not an option, is on the Bad Modem List.
Triple Play Voice Modem With Phone Jack ONLY
You will need your own router (Router Buying Guide)
Netgear CM500v: Cheap standalone voice modem. Amazon
Netgear CM1150V: Best possible voice modem. Amazon
The CM500v paired with a cheap router is a much better deal than the C7100v combo. We suggest this if you have speeds of 200Mbps or less.
DOCSIS 3.1 Gigabit Voice Modem
Note that the C7100v modem is not approved for speeds over 500Mbps. If you have Comcast Gigabit speeds and a Triple Play voice package, you are required to get a DOCSIS 3.1 modem with voice. This would be the Netgear CM1150V. The problem is that is a standalone modem only so you will still need to buy your own router.
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 with a phone jack. I have had readers also report that they tried and Comcast would not let them use a normal DOCSIS 3.0 modem.
Is this my only option?
If you have Comcast Voice Triple Play, then yes. You must use one of the two telephony compatible voice modems. Your options are very limited, but the Netgear C7100v is a solid DOCSIS 3.0 EMTA modem, meaning it is fast enough for Comcast packages all the way up to Extreme, Comcast Blast, and Performance. Get 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.
Motorola MT7711 Vs Netgear C7100v
Here’s where the going gets tricky. On one hand, you have the much cheaper and newer Motorola MT7711 and on the other hand, you have the older time tested Netgear C7100V. What one works best for you? Cheaper? Or one with added features?
While the Netgear C7100v is the clear winner as far as features go, the Motorola MT7711 is by far cheaper and will perform the same as the Netgear. The truth is, the Netgear really only has one solid thing going for it, USB ports. Now is that worth about an extra hundred bucks? To some, yes. For me, it is a requirement that my router has USB ports for a print server / external backup drive on my network.
But let’s be real, that is not going to be necessary for 90% of home users. So here we are, you and me, face to face with a final answer. You will want to get the Motorola MT7711 and save yourself some money. If you’re not a network nerd and you just want a cheap working device, you’ve found your modem.
- Broadcom Chip
- USB Ports
- Wireless AC1900
- Better GUI
- Much More Expensive
- It’s Netgear
- Broadcom Chip
- No USB Ports
- Wireless AC 1900
- ARRIS GUI
- Much Cheaper
- It’s Motorola
Arris SVG2482AC vs Netgear C7100V
It’s almost not worth bringing the ARRIS into the battle, but many of you want information on this unit because it is one of the top retail modems. But what none of them tell you is, it has a bad chip.
Because of this, in any given situation I would pick the Netgear C7100V over the Arris SVG2482AC. The C7100v has a Broadcom chip while the ARRIS SVG2482AC has the flawed Puma 6 chip and is on the list of bad modems. This is pretty big because even after they released a firmware update, users are still reporting latency spikes and internet slowdowns. Making the very popular ARRIS voice modem, not an option.
But even if the ARRIS SVG2482AC did not have a bad Puma 6 chip, it would lose this battle for many reasons. One, the Netgear C7100v 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 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 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.
- Broadcom Chip
- USB Ports
- Faster Wireless
- Better GUI
- It’s Netgear
- Puma 6 Chip
- No USB Ports
- Slower Wireless
- ARRIS GUI
- It’s ARRIS
Netgear CM500V Vs CM1150V Gigabit Voice Modem
You would get either of these if you wanted to use your own router.
You may think these modems compare, but they are in two completely different categories when it comes to technology, standards, and performance. We’ll keep this very simple.
CM500V: Only good for speeds up to 200mbps.
CM1150V: Newest technology, DOCSIS 3.1 and the only way to get Gigablast speeds.
- Broadcom Chip
- DOCSIS 3.0
- Max Speed 200Mbps
- Can Use Own Router
- Broadcom Chip
- DOCSIS 3.1
- Max Speed 1Gbps
- Can Use Own router
Best Xfinity Voice Modem Conclusion
The obvious conclusion if your heart is set on a combo modem router, get the Netgear C7100v Xfinity voice modem. It is undoubtedly the winner between it and the ARRIS SVG2482AC. No competition when it comes to EMTA modems. But if you want the cheaper modem without USB ports, the Motorola MT7711 was just released and just for you.
If you want to use a separate router as we prefer, then get the standalone Netgear CM500v voice modem and a wireless router of your choice. But nothing below AC1750.
This knowledge base is for Comcast Voice Subscribers. If you do not have Xfinity Voice, you can get a regular non-voice cable modem combo.
Any questions? Feel free to ask below and please share with your Comcast friends to help them save $10 a month.
Paul Grazulis says
Just curious if I wanted to use Nighthawk (Netgear) products…how would you setup a gaming rig with a separate router and separate modem system having Comcast. I hear not having a combo modem/router is overall a better setup.
StickyStatic says
I agree and would go for the separate modem and router.
You would want the Netgear CM500V above and your router of choice.
I have linked some routers as well in the ASUS family.
Louis says
Comcast does not require a telephone modem with triple play if you do not intend to use the phone option!
StickyStatic says
Comcast themselves has confirmed this over the phone with me on several occasions and we have had several readers confirm this as well.
However, you and maybe 2 others have said that you do not need a telephony modem.
If you buy a non eMTA modem, you are doing so at your own risk. Contact Comcast before making this decision.
To my understanding the reasoning behind this is legal and the account will not allow the activation of a non voice modem because of legal risk, they can not provide you with a telephone service that does not work even if you do not want it to work. So you must have a modem to enable it.
Again, call your Comcast sales agent and ask before taking this advice because I myself have confirmed and several others have too. But again, I’ve seen 3 people say that you do not need a telephone modem. The lines are crossed at Xfinity somewhere.
Tom says
What about the new Netgear CM500V as an option if you do not need the built-in wi-fi router? It is listed in the chart on the Xfinity website and has more channels and much higher speed (500 Mbps vs 100) than the Arris TM822R. Plus they are priced within $10 of each other on Amazon. The Netgear looks like a much better pick than the Arris.
StickyStatic says
Yes, it is never in stock though so they seem to be having supply issues.
Tom says
I also subscribed to Triple Play for the bundle price discount and am not using the voice service and have continued to use my prior non-voice capable modem. You do NOT need to change your modem if you do not intend to have a Comcast cable land-line.
Sharon says
It is simply not true that if you have triple play you MUST use a voice enabled modem/router. I have X1 triple play and don’t use the phone. I have a TP link combo modem. It does not have a phone jack and I had no problem activating it on Xfinity. It took one short phone call to 1-800-comcast and it was up and running.
hobo says
So are you just using the phone services with possibly the mobile app / pc, (without connecting a phone to the TP)?
And / or is your phone a digital phone that connects to a TP ethernet port or via WiFi?
Or is your phone an analog phone using an analog telephone adapter (ATA) (RJ11 to RJ45), converting analog to VOIP and vice versa?
I require an analog phone line that includes an analog fax and home security, and right now using a RJ11 connection to a voice port. I purchased an eTMA modem. Could I have done this without an eTMA modem still supporting my analog phone requirements? My impression from Comcast is they don’t support ATA for my needs, and required eTMA.
Sharon says
I’m just not using the phone feature at all. We have 5 cell phones in this house so the landline is superfluous. The only reason we have triple play is that it automatically came with the package that we wanted and got a deal on. We are not paying extra for the phone. If you need a landline then yes, you probably should buy one of the approved modems, but to say you have to (if you’re not using the phone) is incorrect.
StickyStatic says
I was told by several Comcast sales reps and have had many of our readers confirm that you must use an eMTA phone modem if you have Xfinity voice service, whether or not you use the phone line. However I have had 2 readers say they were able to do it without a voice modem while others had to return their non eMTA cable modem.
hobo says
There is one other feature to consider – RDK-B.
I get the USB ports are not taking advantage of at this point, and the Arris GUI is lacking. However, could Arris or possibly Comcast address these features through updates. After all, the Arris modem does support the open standard RDK-B technology which gives even Comcast the ability to provide feature updates. The NetGear does not support RDK-B.
BobC says
I currently have a Motorola Cable, Netgear Router and a Xfinity’s Arris TG1682 (for voice and $10 per month), does the Netgear 7100V replace all of these into one? If so, is there any signal degradation or performance issues?
StickyStatic says
That’s the one voice combo modem that will replace both old devices and have more download channels with a higher wireless throughput. You should notice a great improvement in wireless coverage.
Jason says
I was leaning toward the Netgear for the reasons you outlined, until I noticed quite a few BestBuy reviews mentioning a similar problem with signal dropout requiring reset multiple times within a months time. A couple mentioning returning the unit and falling back to the Arris without difficulty. I realize there will always be some outliars, but the pattern of similar difficulties has me questioning their QA/firmware for this model. What have you heard?
StickyStatic says
I have not heard any complaints along those lines. The ASUS routers will have this problem if you do not update the firmware. Maybe the same with Netgear? You should pretty much always update your firmware right away because there is always something more stable than the initial release package.
Ray says
What is the best option if you already have a wireless router? Just got a Netgear Orbi, not looking to spend more for wireless. Would love a high speed option sans wireless.
StickyStatic says
Hey Ray, I just updated the article to reflect a non combo voice modem option, the standalone modem if you currently own your own router. I added a whole section and put it in the comparison chart.
MWC says
Thank you for simplifying the comparison between these two voice modem router options from Comcast. Based on your summary, the Netgear C7100V is definitely the way to go.
mike says
what about the Arris TG862G?
It is less expensive and still carries 200mbps.
StickyStatic says
I personally would not buy anything wireless N. That is yesteryears technology and I have too many high speed devices that rely on a strong wireless AC signal. The reviews are also pretty bad as you can see.
Chance Dogood says
The ARRIS plain as day looking at the pictures of the back has 2 USB ports. So the only difference is the wireless AC speed.
StickyStatic says
I guess I need to update and explain. Those USB ports serve no purpose. The firmware will not let you plug in an external drive or a printer. It is for the factory and kind of a huge flaw really.