Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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Initialization Process Overview
The initialization process of the device is responsible for network connectivity and operation of the device in your
local network. Once you connect your device to the network and to an electrical supply, the device begins its ini-
tialization process.
Topics
Loading the ROM File
Configuring the VLAN
Querying the DHCP (Dynamic Host Configuration Protocol) Server
Contacting the Provisioning Server
Updating Firmware
Downloading the Resource Files
Loading the ROM File
The ROM file resides in the flash memory of the device. The device comes from the factory with a ROM file pre-
loaded. During initialization, the device runs a bootstrap loader that loads and executes the ROM file.
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