Polycom SoundStructure C16 Design Manual page 356

Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
If the web server cannot be found then the system will present an error
message of the form shown in the following figure. If you see this
message, check that the SoundStructure VoIP Interface and the HTTP or
FTP server have a valid network route and that your Windows Firewall is
disabled if you are using your local PC's FTP server or HTTP server.
If the specified XML file is not found, then an error message will display
indicating that it is not possible to communicate to the phone as shown
next.
If software versions are found, select the version of software from the
Software menu and select Install as shown in the following figure.
6. Versions of firmware that are newer than the current running software
are colored green, the current software version is colored blue, and
previous versions of software are colored red. After clicking Install, you
will be presented with a confirmation to proceed. Select Yes to continue
or No to cancel the software upgrade.
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