[Freeswitch-users] Remove a user from a call group if error

Hi, is it possible to remove a user from a call group if the dialstring or hangup cause returns error similar to the option "outbound_redirect_fatal". I've a group "200" with members "1" and "2", I then call to the group using call_group(200+F) if the user 1 is not registered just call the user 2. Now ii see calling user 1 that is immediately hangup with hangup_cause user_not_registered. Write now i've lua script that executes the api call_group(200+F), parses the dialtring and remove the error/not_registered before executing the command bridge(dialstring), i wanted to avoid using a lua script to call a group. Can it be done? -- Saludos / Regards / Cumprimentos, António silva