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Forum Discussion

Greg76's avatar
Greg76
Tutor
Nov 22, 2020

CM1150V Voice Not Working

I purchased the CM1150V from netgear to replace the Altice modem from Optimum so I could fully access my smart home systems.  The modem was provisioned by Optimum when I called and internet works jus...
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Nov 23, 2020

Either ISP or a tech needs to check the phone lines in your home. You'll need to contac the ISP for help in this. If this worked on a different ISP and isn't working on the different ISP, then the newer ISP needs to look into this. 

Greg76's avatar
Greg76
Tutor
Nov 25, 2020

It is the same ISP (Optimum).  The only difference here is the modem.

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Nov 25, 2020

    Either ISP or a tech needs to check the phone lines in your home. You'll need to contac the ISP for help in this. 

    Contact NG support as well. 

  • SShawn's avatar
    SShawn
    Aspirant
    Jan 09, 2021
    Wondering if you got this to work with optimum if so how or what do I need to do I have same issue
    • antinode's avatar
      antinode
      Guru
      Jan 09, 2021

      > Wondering if you got this to work with optimum if so how or what do I
      > need to do I have same issue

       

      > Model: CM1150V|DOCSIS 3.1 Nighthawk. Multi-Gig Speed Cable Modem for
      > XFINITY(R) Voice

       

         I know nothing, but does "optimum" offer "XFINITY(R) Voice"?  I would
      think not.

       

         Perhaps a forum search for "CM1150V" would find some useful
      information.  Mine found, for example:

       

            https://community.netgear.com/t5/x/x/td-p/1970842

      • Greg76's avatar
        Greg76
        Tutor
        Jan 09, 2021
        Hi. Working with Optimum is a brutal process. Speak to 5 different people and you’ll get 5 different answers on almost any topic. Modem says it’s for Xfinity but also compatible with other service providers and optimum actually told me to buy this modem. In the end, I also had an older modem (slower speed) that I used for my phone while my internet runs through this modem.