Just installed an ACS with a Small PC card that answers all calls on two lines. They forward their phones to another office frequently during the day. When their phones are forwarded and I call in, I hear the other office Auto attendant but the light stays on the line that is forwarded. With the lines not forwarded and I hang up after the auto attendant answers, the lines disconnect properly. I realize this must be an SBC signaling issue but I wanted to make sure there isn't something I can change to before I get involved with Telco meets etc. She has another office with this happening and a third office that does not do this.