I run a home lab in which I have two Call Managers (A pub and a sub). Both are registered with the MGCP gateway, and I have no problem making calls. When I fail over to the sub, the phone that I'm using (a cisco 7921) does not failover to the sub. When I check the settings on the 7921, it does not list the sub anywhere. The gateway recognizes that the pub is down, and fails over just fine. I'm sure that I'm missing some obvious configuration somewhere, but I just can't seem to figure out what that is. Any suggestions?
When the wireless IP phone is connected to a Cisco Unified Communications Manager Release 5.0 or later, you can have multiple security profiles assigned to a phone. When the phone has more than one security profile using different secure Cisco Unified Communications Manager clusters, you must delete the CTL file from the current profile before enabling another profile. See "Understanding Security Profiles" section.
To unlock the CTL file from the Security Configuration screen, follow these steps:
Step 1 Scroll to the CTL File menu and press Select.
Step 2 Press **# to unlock options on the CTL File menu.
If you decide not to continue, press **# again to lock options on this menu.
Step 3 Scroll to the CTL option that you want to change and press Erase.
After you make the change, the CTL file will be locked automatically.
What you have done exactly as Its seems to be unusual !!! If ip phone registered to a CUCM once, then I think there is no involvement of dhcp option 150 and if Primary cucm is not reachable from IP phone then ip phone should try to register on secondary cucm.
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 ...
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