I posted about this onece but that conversation was taken private. I am posting again in the hope that it will be fixed. As it stands, I cannot use the Company Fax Number as the outgoing Fax Caller ID. Incoming Faxes are assigned to a Message Only Extention so they can be routed to a Shared Mailbox in Exchange. When set up this way, the Fax Number does not show up in the list of possible numbers to choose from in the Fax Settings.