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purchase replacement modem for cisco dpc3939 with voice

Contributor

purchase replacement modem for cisco dpc3939 with voice

does the NETGEAR CM500V (16x4) DOCSIS 3.0 Cable Modem with Telephone Jack, Max download speeds of 680Mbps replace the cisco dpc3939 with voice?

Diamond Problem Solver

Re: purchase replacement modem for cisco dpc3939 with voice

Which speed tier are you subscribed to ?

Valued Contributor

Re: purchase replacement modem for cisco dpc3939 with voice

The CM500V would basically be a direct replacement if you are using a 3939.  It is an older model modem but as long as your speed-tier is below 300mbit you will be fine.  If you have a 3.1 plan (usually gigabit) however it would not be compatible.  Most systems are running 32-downstream channels though and the advantage of this is it allows your modem to switch around if there is congestion.  I always say it is worth spending the extra money to help future-proof your equipment for a little longer.  16 will obviously work but it limits you down the road as far as what speeds are available to you.  

Contributor

Re: purchase replacement modem for cisco dpc3939 with voice

250

Contributor

Re: purchase replacement modem for cisco dpc3939 with voice

what would you suggest?

Diamond Problem Solver

Re: purchase replacement modem for cisco dpc3939 with voice


@barbarawood wrote:

250


It's compatible.

Valued Contributor

Re: purchase replacement modem for cisco dpc3939 with voice

The options are pretty limited as far as modems that support phone service so the model you picked out will work fine for you.  There are a couple more expensive models from Arris but I doubt you would see any performance difference and they are about $100 more than the Netgear. 

Expert

Re: purchase replacement modem for cisco dpc3939 with voice


@barbarawood wrote:

does the NETGEAR CM500V (16x4) DOCSIS 3.0 Cable Modem with Telephone Jack, Max download speeds of 680Mbps replace the cisco dpc3939 with voice?


In part. The CM500V is an eMTA (voice) modem only, and the DPC3939 is a gateway, which allows multiple devices to connect to the internet, plus it allows for wireless access also.

 

If you purchase the CM500V, then you should also purchase a wireless router if you want to have those features as well. 


"The one thing that you have that nobody else has is you. Your voice, your mind, your story, your vision. So write and draw and build and play and dance and live as only you can." - Neil Gaiman
Expert

Re: purchase replacement modem for cisco dpc3939 with voice

@barbarawood

You can log into http://mydeviceinfo.xfinity.com to find approved devices that specifically support your speed tier and service level.

 

Also, see: https://forums.xfinity.com/t5/Home-Phone-Service-Equipment/How-to-purchase-and-install-a-voice-modem...

 


I am not a Comcast employee, just a moderator. Pls observe Wheaton's Law.