The routing is done automatically in the nipc.js script. Regexroute is not involved at all. You leave registration with regexp (that is also done in the nipc script), and don't modify anything in the regexroute.
If the outbund connection is set and it's connected, then calls that can't be routed inside will automatically go to them. If you set in regexroute to route all calls outside, it's normal not to be able to route anything to the registered users.
Post an archive with all you configuration files and a yate log with sniffer and debug on as instructed in the previos post. Just a single screenshot doesn't help.