Configuring Basic Features135 Supported Provisioning Protocols Configuring a Provisioning Server Deploying Phones from the Provisioning ServerWhy Using a Provisioning Server?You can use a provisioning server to configure your IP phones. A provisioning server allows forflexibility in upgrading, maintaining and configuring the phone. Boot files, configuration filesand resource files are normally located on this server.When IP phones are triggered to perform auto provisioning, it will request to download theboot files and configuration files from the provisioning server. During the auto provisioningprocess, the IP phone will download and update configuration files to the phone flash. For moreinformation on auto provisioning, refer toYealink_SIP-T2_Series_T19(P)E2_T4_Series_T5_Series_W5_Series_IP_Phones_Auto_Provisioning_Guide_V81.The IP phones can be configured to periodically upload the log files to the provisioning serveror specific server, which can help an administrator more easily find the system problem and fix it.For more information on log files, refer to Viewing Log Files on page 899. The IP phones canalso be configured to upload the contact file to the provisioning server or specific server,avoiding the loss of the local contacts. For more information, refer to Backing up the LocalContacts on page 343.Supported Provisioning ProtocolsIP phones perform the auto provisioning function of uploading log files (if configured),uploading contact files (if configured), downloading boot files, downloading configuration files,downloading resource files and upgrading firmware. The transfer protocol is used to downloadfiles from the provisioning server. IP phones support several transport protocols for provisioning,including FTP, TFTP, HTTP, and HTTPS protocols. And you can specify the transport protocol inthe provisioning server address, for example, http://xxxxxxx. If not specified, the TFTP protocol isused. The provisioning server address can be IP address, domain name or URL. If a user nameand password are specified as part of the provisioning server address, for example,http://user:pwd@server/dir, they will be used only if the server supports them.NoteConfiguring a Provisioning ServerThe provisioning server can be set up on the local LAN or anywhere on the Internet. Use theA URL should contain forward slashes instead of back slashes and should not contain spaces.Escape characters are not supported.If a user name and password are not specified as part of the provisioning server address, the UserName and Password of the provisioning server configured on the phone will be used.There are two types of FTP methods—active and passive. IP phones are not compatible withactive FTP.