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:

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:

where n is the number of KBs received from the TFTP server.

3. While the application file is downloaded to the IP telephone, all IP telephones except the 4601/4601+ display the following message:

where n is the number of KBs received from the TFTP server. Then the telephone downloads the 46xxsettings.txt file.

4. While the application file is saved in flash memory, all IP telephones except the 4601/4601+ display the following message:

with the percentage of the file and the number of elapsed seconds incremented as the application file is stored in flash memory.