Is is a software key from vodavi or, can I just enable it?

Nevermind, I think it's order a card to expand it to 6 ports, with the floppy key, and then wait on hold...

If I remember correctly, hardware wise there is no such thing as a two port, only a four with two ports not enabled. Two of the ports are covered with plastic. In other words you don't need a card only a key which came on a floppy. You provided the VM serial number to Vodavi and they sent a purchase order to your distributor. Hopefully you can still acquire the key but something tells me that might not happen.

Even if the key were still available, the original factory cost to upgrade would be more than just purchasing a 4-port from the sponsor of this site. I tried looking for the old price sheet but we just moved our offices and do you think I could find it? Ha ha.