registration of some 9971 phones in a fresh CUCM 8.0 environment fails constantly. The phones ran without problems in another CUCM 8.0 before and have the "old" config still active (because they never registered to the new cluster). The log of the phones shows the following:
|21:08:06 Updating Trust List|
|21:08:17 Trust List update failed|
|21:08:27 TFTP-Error : ram/SEPD0574CF62596.cnf.xml|
The phones get a dhcp lease and the xml config file is also available on the TFTP server; hosts can reach each other. It seems that they are stuck at the TFTP step of the boot process. I searched for this error and found some hints towards possible authentication problems (CTL List), but there was nothing special configured in the cluster before (unsecure profile, i.e.). Aside from this, I am not yet very familiar with phone security/authentication.
Any help would be greatly appreciated. Thank you!
Solved! Go to Solution.
if the phone is not updating the trust list then you have to erase it manually beacuse some time even after factory default reset it doesnt work.
Reseting the IP Phone CTL manually#
press settings ==> then **# to unlock the settings => then go to security configuration => Trust list => select the CTL file and press erase
The phone will reset and wait for downloading the new CTl files from the tftp server.
Reference Link #
My 9971 still has the same error and it's not a 7791, it's CP-9971
and also the hard reset process described above does not apply to this device, I have another CP-6945, the hard reset process works fine for CP-6945..But not for CP-9971, and wherever I googled for CP-9971 problems, I find solutions for 7791, is this model not an original cisco phone?
Please Follow the steps ,
Step 1 - Press the settings button --------> Which is appeared in the left hand side
Step 2 - Select the Administrator Setting Soft Key
Step 3 - Scroll Down to Reset Setting - Select the Reset Settings Soft Key
Step 4 - Scroll Down to Security Settings - Select the Security Settings Soft Key
Step 5 - Then it will display the Reset Security Settings Image to Reset the security settings
Step 6 - Reset the soft Key.........