400HD Series IP Phones
Administrator's Manual 222 Document #: LTRT-11973
7. For tftps64 to accept the new settings, close and open tftpd64.
After (1) tftpd64 is restarted, (2) the phone is directly connected to the PC, and (3) the
network settings referred to above are applied, the phone immediately gets the required
options 66 and 67 and begins downloading the firmware. Verify that the phone is
downloading the image file as shown in the next section.