If you have access to a compact flash card of 256Mb capacity or below, you can download the firmware zip file from the FTP site or Cisco download site and extract the files on your desktop. Rename the extracted bin file image as kupgrade then power cycle the ISDN GW with the card in the unit and a console cable attached and you should see the boot loader take a copy of the CF firmware and install it to the unit.
Further information on this restore process can be found at
I would like to help you out via a TAC case, but if the unit was given to you as a demo unit quite some time ago, this device really should have been transfered under a service contract knowing that it was only "given" to you as a demo unit, especially if you have decided to continue using it.
I will try and gather some information for you that i can write up here in the Support Community for you, but honestly this device should really be covered by a service contract to gain the appropriate type of support needed.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...