1st connect a PC to the OEM port, set your PC to get an ip address VIA DHCP.
then brows to 10.10.11.1, you will need to download and install Element manager.
all the documentation will be available at that IP address as well.
you will need a Vendor involved to purchase Key Codes for Call Center and Voicemail boxes. you already have call Pilot, you just might need some mailboxes