[PLUG] VoIP question

[Rich Shepard]

I just discovered that the ZiplyFiber router/modem installed (separate from
my Ubiquti Edge router and LAN switch) when the phone was converted from
copper to VoIP costs me $15/month rent for what the company calls "Business
Network Services". That's more than the taxes on copper phone lines.

Knowing nothing about VoIP I ask if there's an analog voice (land line
phone) to digital converter that I can connect to my switch (or directly to
the router) to replace this rented unit? The Ziply installer told me he
turned off the WiFi capability of their modem because I already have a
working WAP.

Advice appreciated,

Rich