Page 124 of 206 Administration and maintenance
553-3001-304 Standard 3.00 September 2004
Displays
When the wireless handset is powered on, it displays a series of messages
indicating that it is searching for new software, checking the versions, and
downloading the software. During the download, a progress bar on the
wireless handset display screen displays the progress of the download.
When the update is complete, the wireless handset displays the extension
number, and is ready for use.
IMPORTANT!
While the wireless handset is updating the software, the NO SVC
message displays, and the wireless handset should not be powered off.
For approximately 10 seconds, the wireless handset cannot be powered
off. A warning message is displayed during that time. If the warning
message is not displayed, the wireless handset can be powered off
without damage.