Expansion module startup initialization

Once you have installed and powered up the expansion module on the IP Phone, the expansion module initializes.

Table 5 on page 25 describes the initialization process for the expansion module.

Table 5 Initializing the expansion module

Activity	Description

The expansion module performs a self-test	The self-test confirms the operation of the local memory, CPU, and
	other circuitry f the expansion module. During the self-test, the
	expansion module display lights up.
	Note: If the expansion module display does not light up, or lights up
	and then goes blank, check that the expansion module is correctly
	installed and configured.

The expansion module establishes	The expansion module display flashes until it establishes
communication with the IP Phone	communication with the IP Phone.
	Note: If the expansion module display does not start flashing, check
	that the expansion module is correctly installed and configured.
	Note: If the expansion module display does not stop flashing, the
	expansion module has not established communication with the
	IP Phone. Check that the expansion module is correctly installed and
	configured.

The expansion module downloads key	The key labels download to the expansion module. During the
mappings and labels	download, the display is blank.

Expansion Module 1100 Series User Guide