Dynamic Addressing Process
3.Using the list of gateway IP Addresses provided by the DHCP server, the telephone performs a router check. The telephone cycles through the gateway IP Addresses with ARPs or pings until it receives a response. During this search, the 4601’s Call Appearance Line b indicator flashes continuously 500 milliseconds on, 500 milliseconds off. All other 4601 LEDs remain lit.
When the router is located, the TFTP or HTTP process starts. If no router is found for a 4601/4601+ IP Telephone, its Call Appearance Line b flutters 50 milliseconds on, 50 milliseconds off three times. All other 4601 LEDs remain lit, and a reset occurs.
4.As of software Release 2.8, a new system value FILTERLIST had been added, which allows IP Source Addresses to be filtered for additional security. For more details, see Chapter 2, “Security” in the 4600 Series IP Telephone LAN Administrator Guide.
TFTP/HTTP Processing
The IP telephone connects to the TFTP or HTTP/HTTPS server and looks for an upgrade script file.
During TFTP or HTTP processing for the 4601/4601+ IP Telephone, both Call Appearance Line indicators flash continuously 500 milliseconds on, 500 milliseconds off while all other LEDs remain lit. If the appropriate information cannot be discerned or is missing, both of the 4601’s Call Appearance Line indicators flutter 50 milliseconds on, 50 milliseconds off three times. All other 4601/4601+ LEDs remain lit, and a reset occurs.
1.The TFTP or HTTP server sends and identifies an upgrade script.
The read request packet might have to be sent several times. Each time the RRQ message is sent, all IP telephones except the 4601/4601+ display one of the following messages:
TFTP: #
www.xxx.yyy.zzz
HTTP: n uri
For TFTP, # is the number of TFTP requests made by the telephone and www.xxx.yyy.zzz is the IP Address of the current TFTP request. For HTTP, n is the number of HTTP requests made by the telephone and uri is the URI for the current HTTP request.
2.While the upgrade script file is being downloaded, all IP telephones except the 4601/4601+ display the following message:
46xxUPGRADE.SCR n KB received
where n is the number of KBs received from the TFTP server.
Issue 6 February 2007 39