You can set up call forwarding for any number or user within your organization. Set up call forwarding for your main number, and have it forward to just one or multiple employees. Set it up for your direct line and have the ability to do the same thing. Forward your main line and have endless options to which groups, users, or external numbers that you can forward calls to. Forward through your user, essentially making it so someone calling your extension forwards the call out to another employee or external number.