Hello, I provisioned 3 phones via STUN with a hosted 3CX and everything is working as it should. I am trying to login into the phone's web interface but the default admin, admin does not work anymore. When I use credentials in the 3CX panel for the provisioned phone that also does not work. Which username / password should I use for this?
The picture you are showing is the SIP credentials.
You would want to go to phones and press the eyeball icon to the right of the phone you want the credentials and when the pop up box comes up you copy the phone password. Username will still be admin.