The company I work for just purchased another company that was going out of business, and they have a Meridian 1 pbx. The company that serviced the pbx was owed money and will not service it. I installed and programmed our Norstar system, but have no pbx experience. The problem with the pbx is that is seems only the main number of 21 in a hunt group are ringing to the attendant. I would like to learn all about the system, but my immediate need it to get these lines ringing in to the attendant. I can not find any manuals for the system other than hardware configuration. Is this something easy to configure?