I have a long time customer who purchased a BCM50 and is looking to expand. It's difficult to pin down a time to install this and we finally decided this morning. But I decided to hit the tech talk page to see if I needed anything and now I have questions. I have worked on Nortel and I presently do all the programming on the system. I have a 32 port card that I want to put in place of a 16 port. Will there be a special keycode for this or the mere fact that an expansion cabinet exists is sufficient and is there a license required? Also, although I have the instructions for installation it doesn't tell me what the switches are for. One more: Is there a way through programming to find the MAC code for the voice mail to expand the ports. I can't find anything on the BCM itself. Any ideas on a decent call accounting system for this unit? Thanks. JD