547Appendix ITFTP ServerContents This section contains the following topics:• "Introduction" (page 547)• "TFTP Server planning" (page 547)• "Updating IP Phones firmware" (page 549)• "Downloading and configuring fonts" (page 556)Introduction A Trivial File Transfer Protocol (TFTP) Server may be required in an IPTelephony system to distribute firmware to IP Phones. The TFTP Servercan reside on a subnet other than the Call Server and can be located oneither side of the firewall.TFTP Server planningCAUTIONTFTP firmware download does not work when the IP AudioConference Phone 2033 is behind a NAT Server.The TFTP Server holds the firmware for updating the IP Phones. Assumingthe IP address for the TFTP Server has been configured on the IP Phone,each time the IP Phone is powered on, rebooted, or is manually reset, theIP Phone checks the version of firmware against the version of firmware onthe TFTP Server. If the versions are different, the IP Phone downloads thenew firmware from the TFTP Server.Nortel Communication Server 1000IP Phones FundamentalsNN43001-368 02.01 StandardRelease 5.0 7 December 2007Copyright © 2003–2007, Nortel Networks.
