The Core

Yes, TY
These Firefox extensions can help prevent connections to Google domains and also improve your privacy/security online.

    uBlock Origin

    Privacy Badger

    Decentraleyes

    HTTPS Everywhere

    Cookie AutoDelete

    DDG Privacy Essentials

    I don't care about cookies

    minerBlock

    Terms of Service; Didn't Read

    An expanded list from u/R0B0LUT10N:

        ClearURLS

        Cloud Firewall

        CSS Exfil Protection

        Disconnect

        Don't touch my tabs! (rel=noopener)

        Firefox Multi-Account Containers

        Google search link fix (also Yandex)

        HTTPZ

        Link Cleaner

        Neat URL

        Privacy-Oriented Origin Policy

        Skip Redirect

        Temporary Containers

No Google Voice alternative?

I have some notes on that. Ring Central for sure, but there's a newer/cheaper one that's closer to GV. Line2 I think.