I recently (accidentally) left the TFTP server de-activated on a CUCM 6.1 cluster. The IP Phones were at the right level of firmware so didn't need the TFTP server to be up or downgraded, however with auto-reg enabled did register with CallManager. I thought IP Phone relied on TFTP for every thing including the down load of the config file. Can anyone please explain how these IP Phones registered with out TFTP activated
This was a test environment, I had one CUCM i.e. the Publisher (no back up CUCM and no back up TFTP) I accedently forgot to activate the TFTP service. The IP Phones registered without the TFTP service running.
Is it possible that the later versions on CUCM tried the TFTP address configured as option 150, and if TFTP is not available then asks the server if it is acting as a CUCM, then uses Skinny to get the config...... Just a thought.
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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 ...