Getting Started21 Subnet Mask Gateway Primary DNS (Domain Name Server) Secondary DNSYou need to configure network parameters of the IP phone manually if any of them is notsupplied by the DHCP server. For more information on configuring network parametersmanually, refer to Configuring Network Parameters Manually on page 32.Contacting the provisioning serverIf the IP phone is configured to obtain configurations from the provisioning server, it willconnect to the provisioning server and download the configuration file(s) during startup. The IPphone will be able to resolve and update configurations written in the configuration file(s). If theIP phone does not obtain configurations from the provisioning server, the IP phone will useconfigurations stored in the flash memory. For more information, refer to Setting Up YourPhones with a Provisioning Server on page 110.Updating firmwareIf the access URL of firmware is defined in the configuration file, the IP phone will downloadfirmware from the provisioning server. If the MD5 value of the downloaded firmware file differsfrom that of the image stored in the flash memory, the IP phone will perform a firmware update.You can manually upgrade firmware if the IP phone does not download firmware from theprovisioning server. For more information, refer to Upgrading Firmware on page 124.Downloading the resource filesIn addition to configuration file(s), the IP phone may require resource files before it can deliverservice. These resource files are optional, but if some particular features are being deployed,these files are required.The followings show examples of resource files: Language packs Ring tones Contact filesFor more information on resource files, refer to Resource Files on page 118.Verifying StartupAfter connected to the power and network, the IP phone begins the initializing process bycycling through the following steps:1. The power indicator LED/mute indicator LED illuminates solid red.2. The message “Welcome Initializing… Please wait” appears on the touch screen when the IPphone starts up.