I have the Triple Play but used to have the voice feature. This modem will not work with the voice feature.
In my area I have gig speed but there are no cable modems that will provide gig speed with the voice feature. You can see the list of cable modems that you can buy from retail on their web site and which works for gig speed, voice, etc.
Since I had ADT for home security and was paying $57 per month I dropped their service and replaced the voice feature with Comcast/Xfnity's home security.
With this modem I now have gig speed and still have the same bill amount with my Triple Play except now I save $57 per month by dropping ADT.
If you do what I did make sure to get a Netgear Orbi router too. Your Internet speed will be the same throughout your house as well as outside in your front and back yards.