https://help-team.textrapp.com/en/support/solutions/articles/151000042888-how-do-i-enable-texting-on-my-landline-phone-number
Textr Team: Enable Texting on my Landline Phone Number : Textr Team
How Textr Team Supports Landline Texting. While your current provider handles your voice service, Textr Team will take care of your texting function.
textr teamlandline phoneenabletextingnumber