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2 Modems, One EMTA, one Data?

Contributor

2 Modems, One EMTA, one Data?

The number of modems that are 24x8 or 32x8 that also include an EMTA (Comcast Voice) are severely limited.  In fact, I don't think that there are any 3.1 modems that have an EMTA.  I would like to know if it possible to use 1 modem for the EMTA only and use another Docis 3.1 32x8 modem for data. 

 

I would just drop Xfinity Voice and use another service except that it is more expensive to drop it than keep it.  Plus, I'm stuck on a contract that includes

 

Can this be done?

 

Expert

Re: 2 Modems, One EMTA, one Data?

Hi @Ken98045,

You are correct, there are no approved D3.1 EMTA's yet. If you want gig service and voice, you'll need separate devices. You can install your own EMTA for voice service and another modem for the internet. 

 

For EMTA's see: https://forums.xfinity.com/t5/Home-Phone-Service-Equipment/How-to-purchase-and-install-a-voice-modem...


Contributor

Re: 2 Modems, One EMTA, one Data?

I was just hoping to use one of my old cable modems with eMTA, but just the eMTA.  I assume that this will work because the eMTA has a separate MAC address, but it doesn't hurt to check.

Expert

Re: 2 Modems, One EMTA, one Data?

I am renting the XB6 which has everything, including support for XHome and phone.  One small black box that blends in with almost everything in my "computeer room".  The Orbi is white.XB6.jpg

 

Problem Solver

Re: 2 Modems, One EMTA, one Data?


@Ken98045 wrote:

The number of modems that are 24x8 or 32x8 that also include an EMTA (Comcast Voice) are severely limited.  In fact, I don't think that there are any 3.1 modems that have an EMTA.  I would like to know if it possible to use 1 modem for the EMTA only and use another Docis 3.1 32x8 modem for data. 

 

I would just drop Xfinity Voice and use another service except that it is more expensive to drop it than keep it.  Plus, I'm stuck on a contract that includes

 

Can this be done?

 


I was using an Arris SB8200 for Gigabit Internet (and an ASUS RT-AC88U router), and a separate, much older TM722G for Voice, and they worked perfectly fine. I did have to call Comcast to activate them, though, rather than use the online activation process.

 

Im currently using an XB6-T / Technicolor CGM4140COM, bridged to my ASUS router and I'm pretty happy with this setup. 


"Sometimes the best way to learn something is by doing it wrong and looking at what you did." - Neil Gaiman
Expert

Re: 2 Modems, One EMTA, one Data?


@Ken98045 wrote:

I was just hoping to use one of my old cable modems with eMTA, but just the eMTA.  I assume that this will work because the eMTA has a separate MAC address, but it doesn't hurt to check.


Call in to customer support and tell them what you want to do. The eMTA needs to be provisioned for phone service only and the cable modem needs to be provisioned for data service.