Avaya IP Office Installation Manual page 46

There are three methods that the IP Office may use for upgrading, these are Validated, Offline and Unvalidated.
· Validated Upgrade
This is the preferred method and can be used with any IP Office system that already has IP Office 2.1 or higher
software. By default the Validate option within the Upgrade Wizard is pre-selected. During this process, the required
BIN files are first transferred to the IP Office's RAM memory. Only when the files are received will the IP Office
overwrite the existing software in its Flash memory and restart using the new files.
· Offline Upgrade
On some systems, it may not be possible for the validated upgrade to download all the BIN files required into the IP
Office system's RAM memory. If this is the case, the IP Office will offer to reboot in Offline mode and then attempt to
continue the validated upgrade. In offline mode the IP Office only supports the service necessary to allow upgrading,
for example it does not support Small Community Networking (SCN). If in offline mode for more than 15 minutes
without being upgraded, the IP Office will reboot again back to normal operation.
· Unvalidated Upgrade
This is the least preferred upgrade method. It should only be used from a PC directly connected to the IP Office and
with a fixed IP address on the same LAN domain as the IP Office LAN1. This method involves erasing the existing
software in the IP Office's Flash memory and then copying the new BIN files directly to the Flash memory. Its uses
BOOTP and TFTP and requires a BOOTP entry for the IP Office system to exist on the Manager PC. This method should
not be used unless absolutely necessary.
IP Office Installation
IP Office 15-601042 Issue 19l (06 November 2008)
Page 46