Avaya 03-300430 User Manual

Nonvolatile memory stores downloadable parameters in programmable terminals. Once the 
terminal is downloaded, it is not be necessary to download it again, even if power is removed 
from the terminal. If nonvolatile memory fails with power still present, the terminal reverts to its 
default factory settings except for its A-law/mu-law companding settings which are stored in 
RAM. If power is removed after the nonvolatile memory fails, the terminal reverts to its factory 
default settings.

Note:

The mu-law companding mode is assigned as a default setting at the factory. For 
the United States, a programmable terminal can place calls even though it has 
not been downloaded from the system.

There are several different scenarios that cause a terminal to be downloaded. These can occur 
as part of background maintenance activity or on demand from the system access terminal or 
from a station.
For the following background actions, the terminal downloads automatically if a download retry 
flag for the terminal is set in software. This flag is set:

●

At boot time when translation is loaded

●

When translation that affects the parameters of a terminal is changed as part of system 
administration action

●

When a port is inserted in software as a result of board insertion or translation change

This section describes download actions that occur automatically.

A global download action is started when periodic maintenance tests start after a system 
reboot/restart regardless of whether the parameters have been downloaded previously.

If the download flag is still set when periodic tests are run on a terminal, a download action 
will occur. This operation is required in case a terminal could not be downloaded previously 
either:

●

Because it was off-hook at the time the system first booted

●

Because the terminal was off-hook at the time translation associated with downloadable 
parameters was changed