Im new to freepx, and think I missed soemthing in the config , but it looked simple.
I am getting a 401 error
SIP code 401 (according to the very quick Google search I just did) is “Unauthorized.”
Something in your set up is wrong - password, IP address, etc. Depends on what the Carrier is expecting from you.
I am using telnyx. Should they not be able to see the error?
we had to change the authentication, which we did and it works great.