externip=202.x.x.x (the external ip address!)
you should consider also listing your Asterisk Version, as it can have impact on specific problems. Otherwise very well done.
Now be sure your network is secure (whitelist ip address access only, either in your firewall or in the Vicidial server itself). And BACK UP YOUR DATABASE!!!
(Getting the DB off the server is a required piece of the backup, and consider how valuable that DB backup is if you never restore it anywhere ... ie: do you KNOW it will work when needed?)