Service and Maintenance
69
This section describes the functions available to you for detecting errors and troubleshooting. In addition, this section describes
how to update the operating software (firmware) on the PBX and extend the range of features on the PBX by enabling functions
that are available for purchase.
Overview of Functions
Restart
A restart (reboot) is when you cause the PBX to reboot
while it is already functioning.
A restart is required, for example, in the following
situations:
After the operating software on the PBX has been
updated (firmware update)
When the operating software on the PBX is
changed (restore firmware)
After the operating software on the PBX crashes
After a change to the configuration that cannot be
applied when the PBX is in operation
The following options are possible:
Immediate restart. All the connections to the web
server, all calls and all data services are closed.
Unsaved data are lost.
Delayed restart. Like an immediate restart, but
performed in consideration of currently existing
ISDN calls. As soon as all of the existing ISDN
calls have ended (also before the expiration of the
time specified), the PBX restarts. During the delay,
the PBX prevents new calls from being
established. If a call is still active when the timeout
occurs, the call is interrupted in order to carry out
the restart.
Restricted restart: Only a part of the PBX functions
is restarted. All calls and all dataservices are
closed. The web server remains unaffected by
this.
An immediate restart is automatically performed for the
following functions:
Immediate firmware update
Firmware restoration
Factory settings restoration
A restricted restart is automatically performed for the
following functions:
Configuration reset
Restoring the configuration
Port configuration changes
Changing the Module Configuration
Changing the S
2M
settings
How to perform this is described on the following pages:
For an immediate restart at the push of a button on
For an immediate or delayed restart at the push of
a button on
Note: If possible, avoid interrupting active calls with a
restart. Perform a delayed restart or wait to used a
function that would cause an automatic restart until all
calls have ended. Any external calls still in progress
are indicated by the LEDs on the separate S
0
, U
P0
and S
2M
ports (see
). For a more detailed
overview, refer to the page Administration
Monitoring
External call channel assignment
(see also
Shutting down
It is a good idea to perform the PBX shutdown procedure
when, for example, the PBX needs to be turned off. Do not
remove the power plug for the PBX or accessories from
the power socket until the shutdown procedure is
complete.
During the shutdown procedure, all connections to the
web server, all calls and all data services are ended and
all internal processes are put into a specified idle state.
How to do this is described on
.
Firmware update
A firmware update is the process of updating the
operating software (firmware) on the PBX.
A firmware update is required, for example, in the
following situations:
To resolve problems
To integrate new features
The following options are possible:
Immediate firmware update. The PBX immediately
establishes a connection to a server and
downloads the most current firmware, if available.
After this, an immediate restart is automatically
performed. If the feature is activated, the firmware
on connected system telephones is also updated.
Regular firmware update. Like an immediate
firmware update, but at previously specified time
intervals.
Manual firmware update. A firmware file that has
previously been saved on the hard disk is loaded
onto the PBX. After this, a restart is carried out in
order to activate the new firmware.
If the new firmware proves to be defective, the firmware
used previously may be restored. The PBX retains not
only the current firmware used but also the firmware last
used in Flash memory. When the firmware is restored,
Service and Maintenance
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