Initialization - Avaya one-X H.323 Installation And Maintenance Manual

9600 Series IP Deskphone Installation
user that the phone is active and has not "locked up," and to provide useful information about
the status of network, server or downloading operations before the availability of dial tone.

Initialization

The following description describes the software architecture upon which the requirements are
based, as well as providing a high-level overview of how the telephone is expected to operate
during startup and software upgrades. This is by no means a comprehensive description of all
of the internal tasks performed during startup.
Files are stored in five areas of reprogrammable non-volatile (flash) memory in the deskphones:
a boot program area,
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two Kernel/Root File Systems,
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one Application File System, and
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one Temporary Storage area.
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Two Kernel/Root File Systems are supported in case one becomes corrupted, but only one is
activated when the telephone powers up or resets. Temporary Storage is used to store a new
Signed Application/Library Software Package that has been downloaded by the current
application until it can be installed by a process in the active Kernel/Root File System after the
next reset.
When a telephone starts up, the boot programs check the Kernel/Root File System that has
previously been marked as the one to be activated to ensure that it has not become corrupted,
and if it has not, it transfers control to a process in that file system. If that file system is
corrupted, the boot program checks the other Kernel/Root File System. If that file system is not
corrupted, it is marked as the one to be activated, the value of RFSINUSE is set to the name of
the Signed Kernel/Root Software Package that was used to install that file system, and control
is transferred to a process in it. If both Kernel/Root File Systems are corrupted, the telephone
will not operate and must be returned for repair.
A process in the active Kernel/Root File System first checks whether a Signed Application/
Library Software Package is stored in Temporary Storage, and if it finds one, it installs the
Application Software Package and/or the Library Software Package if either has a different file
name than the currently installed version, replacing the existing corresponding files in the
Application File System. The copy of the Signed Application/Library Software Package stored in
Temporary Storage is then deleted. If a Signed Application/Library Software Package is not
found in Temporary Storage, the process checks the integrity of the application files, and if they
are corrupted, the process installs files from the Backup Package, replacing the corrupted
application files in the Application File System. Any time an Application Software Package or a
Library Software Package is installed, the value of the persistent parameter APPINUSE is set to
the file name of the Signed Application/Library Software Package from which it was installed. If
the application files are not corrupted, or after the Backup Package has been installed, control is
20 9600 Series H.323 Deskphones Release 6.0 Installation and Maintenance Guide