Thank you,
I put the authentication ID I have on this outbound SIP field "To: User Part".
I still get on the server activity log "registration failed .. Cause: 401 Unauthorized."
When I put the authentication ID in the Authentication ID text box on the "account details", and the phone number in the "To: User Part" sip field, I get the error: "Cause: 404 Not found"
More info:
When connecting from a MP202 SIP Adapter, the settings look like this:
Is there any other place I might be able to put this Authentication ID in?