Downloading Configuration Files17When CommPortal phone applications and CommPortal authentication information areconfigured already, users can perform auto provisioning to download all theconfiguration files from the CommPortal phone configurator.Yealink IP phones support MAC authentication method to deploy phones. For moreinformation on MAC authentication, refer to: www.metaswitch.com.Yealink IP phones also support HTTP digest authentication as defined in RFC 2617 todeploy phones. The system administrator only needs to provide authentication username and password to the users, and then users can complete phone deployment ontheir own.Yealink W52P phones support many ways to obtain the provisioning server address(e.g., by detecting DHCP options 66/contacting Redirection & Provisioning Server(RPS)/Phone Flash). For more information, refer toYealink_W52P_IP_DECT_Phones_Auto_Provisioning_Guide.When using DHCP option 66 or RPS to obtain the provisioning server address, make sureDHCP server or Redirection & Provisioning server has been configured in advance.Yealink IP phones support obtaining the provisioning server address from the IP phoneflash. To obtain the provisioning server address by reading the IP phone flash, makesure the configuration is set properly.To configure the IP phone flash via web user interface:1. Open a web browser on your computer.2. Enter the base IP address in the browser‟s address bar, and then press the Enterkey.3. Enter the user name and password in the login page.