Administrator's Manual D. Recovering the Phone
Version 3.4.3 223 400HD Series IP Phones
D.4 Verifying that the Phone is Downloading the Image
File
The network administrator can verify that the phone is downloading the firmware image file.
To verify that the phone is downloading the image file, use:
Wireshark -or-
tftpd64 -or-
the phone screen
D.4.1 Verifying Using Wireshark
1. In Wireshark, verify that the four DHCP ‘DORA’ (Discover; Offer; Request; ACK) steps
are accomplished, as shown in the figure below.
Figure D-5: Verifying with Wireshark that the Phone is Downloading Phone .img File