I've been having issues with 7911s at several installs now. Basically what happens is that I plug in all the phones, all the 41s, 61s, etc all register real quick, but the 7911s sit there FOREVER configuring IP. I know that they pull an IP from DHCP but they take their sweet time trying to do an upgrade. I've had this problem ONLY with the 11s and on both CME and Call Manager 5.1. Anyone else see something like this? Is there a fix? Right now I just wait for them to come up (some come up after 20+minutes) or sometimes a forced reset via the keypad helps.
There is a known bug with the firmware that has been shipping with the 7911's. I am looking for the exact version, but the problem lies with how the switchports are configured. If the switchport is configured as a trunk, either the traditional way or the new way, the phone has an issue registering. If you configure the switchport as an access port in the voice VLAN, the phones register right up and should download the current firmware on the CM or CME.
We have been running into this issue and this was the fix that we implemented to make it work. Of course, this requires the switchports to be reconfigured to support a trunk if the design calls for it.
I will look for the firmware version that has been shipping on the 7911's and re-post out here.
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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 ...