I know. It is funny thing. This provider is really strange to work with, but I am getting two DIDs for less than 3 USD/yearly so I can’t really complain. Their support doesn’t have much idea and denied giving me a proper trunk anyway.
The SIP URI they provide is some-username@domain.com , but unfortunately, as this is not a trunk, but just a SIP account I am unable to change it or tell it to ring something else on my asterisk box.
If I can’t figure it, I guess I will just let it pop an error on every call and leave it as-is.
With Groundwire, everything works fine - but I thought it would be nice to unify those two DIDs under one extension on my own PBX.
EDIT: You are a genius! I decided to restart Asterisk, just as try-out and the error went away! Now calls are being handled and no error in console anymore. Thanks, many many thanks! Your help was invaluable!