I have internet and phone package. I wanted toswitch internet to Ethernet but the phone will still need the Coax? Don't want to keep the Actiontec only for phone...
Bottom line: No you don't need to keep the coax.
Telephone service is provided directly through an RJ-11 connector in your ONT to the telephone wiring in your location. The coax and the FiOS router are not involved in the phone service at all.
Thanks!
After reading your reply, I remembered the other small box where the phone line is connected . For some reason, I was confusing this router with ADSL one 😞