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System Maintenance 127
Software Update
Software updates are only possible through the RS-232 cable
connection. You cannot use telnet to update the software
version of your Prestige. Note that this function will delete the old
software before installing the new software. Do not attempt to
utilize this menu unless you have the new software version. There
are two different software updates: RAS code and ISDN code.
• RAS code update - Type atur and wait until the Prestige
responds with an OK to begin uploading the new software
(upload procedure varies depending on the type of software
used to access the Prestige). You must use the XMODEM
protocol to perform the upload. After uploading is successful,
type atgo to start your Prestige. Below is an example of
downloading RAS and ISDN using
PCPLUS
.
Figure 14-9 Example of uploading RAS using PCPLUS
• ISDN code update - Type ‘atrs’, ‘atis’, and then ‘atupx’ at the
command prompt before uploading the new firmware (upload
procedure varies depending on the type of software used to
access the Prestige). You must use the XMODEM protocol to