Best COX-supplied modem for Gigablast now?

 Perhaps a better question is, “What is it that you’re trying to accomplish?”.

I believe Dem wants what everyone else wants:  good value, good service.

Of the 9 certified modems on the list supporting gigabit, Cox will issue 2.  If you want 1 of the other 7 (Arris or Netgear), you'll have to purchase it...and Cox will support it.

After asking for advice, Mouth...with vast experience, knowledge and skill...recommended to purchase 1 of the other 7.  However, if Dem subscribes to Voice, Dem can only take the TM3402, which would be a free loan.  If Dem doesn't subscribe to Voice, Mouth advised against the only other option because it's junk:  Technicolor CGM4141.

I'm not sure which is junky:  WiFi, DOCSIS, admin or the entire thing.

Back to the goals:  value and service.  "Free rental" is a good value and 900 Mbps is good (optimal) service.  It worked out.  As an added bonus, if the privately-owned Ubiquiti were to conk out, Dem will have the Panoramic already on the network to configure.

Who knows our options in 3 years:  10 Gbps, full-spectrum, full-duplex, etc.  Delaying your costs could be a good thing but being locked-in with a junky modem would be a bad thing.  Time will tell.

So, it’s 1; having phone service and 2; a getting a badass wireless signal?  A box for each?

I think there's an unpublicized third-choice.  "Publicized" meaning it's on the Cox List of Certified Modems...

1.  Technicolor CGM4141:  Gigabit, WiFi
2.  Arris TM3402:  Gigabit, Voice

The unpublicized third-choice is the Technicolor CGM4140COM because it's not on the Cox list.

3.  Technicolor CGM4140COM:  Gigabit, WiFi, Voice

If I search for the 4140, I mostly get results for Comcast Xfinity.  I think it may be a regional installation to guarantee gigabit service to Cox subscribers by perhaps using Comcast networks.  I don't know.  Perhaps it's an omission on the Cox List.  You'd think Cox would offer a 3-in-1 box.