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Brucep7's avatar
Brucep7
Tutor
May 01, 2021
Solved

Nighthawk AC3200 Model C7800 not capable of Xfinity Voice

Hi, I'm not a "techie" and I have a question that probably has a logical solution other than just using an Xfinity modem. I bought this great modem-router and it gives great service on Xfinity intern...
  • plemans's avatar
    plemans
    May 02, 2021

    To use xfinity voice, you need an xfinity compatible modem. Getting an adapter won't work. 

Brucep7's avatar
Brucep7
Tutor
May 02, 2021

Thanks Plemans.   The Oomans looks like a possible solution without having to buy more equipment (except the Ooman phone).

 

I came across an Ethernet phone on Amazon. Will this phone work with Xfinity Voice thru the C7800 Cable Modem?

plemans's avatar
plemans
Guru - Experienced User
May 02, 2021

To use xfinity voice, you need an xfinity compatible modem. Getting an adapter won't work. 

  • Brucep7's avatar
    Brucep7
    Tutor
    May 02, 2021

    thanks for quick reply.  Xfinity rep told me to exchenge the Nighthawk at Best Buy for another router with an RJ11 port on back and

    Voice would work.  Guess they lied to me. I can't return the Nighthawk as I've already thrown away the box and have used it for 3 weeks. Damn shame....looks like I go with Ooma