3.1.2 Activation Key Code and Key Management SystemTo obtain additional activation keys, you need to purchase the appropriate activation key codes and accessthe Key Management System. You can download the activation keys as an activation key file from the KeyManagement System.To download the activation keys, enter the MPR ID number shown on the back of the main unit, and activationkey number and registration ID provided on each activation key code.For information about the type of activation key codes available, refer to "3.1.1 Type and Maximum Numberof Activation Keys".For details about installing the downloaded activation key file(s) in the PBX memory using Web MaintenanceConsole, refer to "5.4.4 Installing Additional Activation Keys".Note• You can only download the activation key file once using the activation key number and registration IDprovided on the activation key code.• Up to 8 activation keys can be downloaded as one activation key file.• Up to 997 activation key files can be installed in the PBX memory.• It is possible to send the activation key file to a specified e-mail address at the same time asdownloading it to a PC.• Make sure to backup the downloaded activation key files on your PC.• When the mother board has to be replaced due to a system malfunction, the MPR ID for the motherboard is no longer valid. In this case, you need a temporary activation key for maintenance purposes.The temporary activation key can only be used for a limited time period, and can be downloaded fromthe Key Management System in the same way as downloading activation key files.Installation Manual 753.1.2 Activation Key Code and Key Management System