topic Device is not trusted. in Webex Calling

Device is not trusted.

Apple Mahmud — Wed, 10 Mar 2021 20:56:02 GMT

I have auto register the phone to CUCM 22.5. It's working fine, but showing "Device is not trusted "

Please anyone help to me.. How to Trust the Device or phone to CUCM.

Apple Mahmud — Wed, 10 Mar 2021 20:57:02 GMT

CUCM version 12.5.0

Apple Mahmud — Wed, 10 Mar 2021 21:19:34 GMT

How can i fix the issue please....

rmayoh — Thu, 11 Mar 2021 15:07:09 GMT

What is the phone model you are registering?

Apple Mahmud — Thu, 11 Mar 2021 15:27:57 GMT

Hi,

Thank you for your reply.

Phone model : Cisco CP3905

I looking solution please.

rmayoh — Mon, 05 Apr 2021 15:51:01 GMT

Hello Apple Mahmud,

They recommend updating firmware and certificates. I am not sure if you have tried this already or not.