"Auto-Attendant" "IVR" Editing in a &quo

I have a Asterisk PBX System with Redhat Linux Fedora 4, Webmin version 1.400 and I am simply trying to configure into the “Extensions.conf” script an entry that will add to the “Auto-Attendant” a line that will allow an “outside Caller” to enter a “0” (Zero) will then ring the extension of the “Operator” to speak directly with the “OPERATOR” rather than entering an “Employees Extension”.