69XX phones have 10 min TFTP DL timeout. Upgrade fails over WAN. Symptom: 69XX model phones (6921, 6941, 6961) have a 10 minute TFTP download timeout. Phones upgrades over a WAN with over 100 msec of Round Trip Time (RTT) delay may not be able to successfully upgrade. The phone will attempt to download the file, but after several failed attempts will register with the old phone firmware version.
Conditions: Upgrading a 69XX phone over the WAN with greater than 100 milliseconds of RTT delay.Workaround: Move the phone to a central location, or use a TFTP server that is located locally to the phone
I tried to use external TFTP server - TFTD32, but it has not helped.
We use some phones 6921, connected across WAN, we can not upgrade it.
If you configure the option 150 in your DHCP pointing to your local TFTP server, you must copy the xml configuration files from the CUCM server to this TFTP server. This is the error you are facing according to the logs you have sent.
I think it's a pain to upgrade the firmware for 69XX phones because there is no Load Server option to configure the TFTP server that the phone should use to download the firmware.
Did you solve this problem? I'll probably have the same problem in the next installation.
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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