Hello, We added a Large PC card to a Partner ACS about 1 year ago. Customer called today and said one mailbox will not take messages. This is Full time AA so it answers all calls. AA transfers call when digit 3 is dialed and call forwards to mailbox if not answered. But a beep is not heard. After about 5-7 seconds I hear a "Good Bye" and the call gets dropped. Any idea's? THANK YOU!