As @dicko said, in the Extension Module - disable the extension voicemail, enable follow me set āinitial ring timeā to 0, enter the external number in the follow me, followed by #, ensure the āplay music on holdā option is set to āring,ā turn off āconfirm calls,ā set āring timeā to 60, and set ādestination if not answeredā to either āhangupā or another alternative destination that makes sense for you.

Alternatively, you can create a UCP login for your administrator and then authorize the admin to manage āExtension Settings,ā which includes Call Forwarding for the users that they may need to manage. That way, they will not have to log in as that user but can control that Userās Extension, call forwarding settings, within their own UCP account.
