how to upgrade the firmware of cisco phone 7811 without using "Unified Communications Manager"?
do we need to have Unified Communications Manager or something similar to this in order to configure this model of cisco phone? I used to change the setting with browsing the ip address of other model of cisco phone.
right now it displays a "Welcome" screen with the text "Enter activation code or service domain", and I found out I need to upgrade firmware to fix the issue
I cannot browse the ip address of the phone. looks like it is disabled by default. how can I enable it?
